Please Help can not figure out what is up with fish dying
 

Hi everyone

I have this issue on my hands where i have already gave up on searching for
an answer.

It all began with addition of neons and goldfish to an aquarium where i have
already had two eels and two arowanas.

Anyway two neons and goldfish died in about two week period where i noticed
that they had hard time coming up to the top to feed, and when they tried it
seemed like they needed a lot of effort to swim up. Eventually i have
discovered that they stay on the bottom laying on the side and were looking
around an breathing. Also i have noticed that their bellies became somewhat
big and got white color to them. In about a day or two after they stayed
motionless on the bottom they died. One thing i found interesting is that
when you touch them they would start swiming normally for an hour or two and
then go back to the bottom. The second shock whas about two month later when
all of a sudden i have discovered that one of my arowanas was swimming on
the bottom and had trouble swimming up, where it was usually at. Two days
later i saw her bottom up on the bottom of the aquarium and what was strange
it was looking around and breathing. I saw her swim couple of times but two
days later she died too. Today one of my eels died also, it was perfectly
healthy this morning, swimming around coming out for worms but at 12
midnight i found it on the bottom with it's belley up, and again it was
somewhat bigger that it should have been. With the eel i noticed that he
started to swim eratically prior to his death and he tried to come up to the
top for some reason.

Right now one of me new goldfish shows sympthoms of inability to swim up, it
speeds up and once it gets to the top of the aquarium it slows down and
drops to the bottom, the starts swimming up again.


If anyone has a clue what can cause those sudden deaths and inability for
the fish to swim up to feed i would greatly appreciate it.

Thank you very much

--
Sincerely

Alexey Semenov

"Alexey Semenov" wrote in message
news:vrOAd.14827$152.13372@trndny01...
Hi everyone

I have this issue on my hands where i have already gave up on searching
for
an answer.

It all began with addition of neons and goldfish to an aquarium where i
have
already had two eels and two arowanas.

Anyway two neons and goldfish died in about two week period where i
noticed
that they had hard time coming up to the top to feed, and when they tried
it
seemed like they needed a lot of effort to swim up. Eventually i have
discovered that they stay on the bottom laying on the side and were
looking
around an breathing. Also i have noticed that their bellies became
somewhat
big and got white color to them. In about a day or two after they stayed
motionless on the bottom they died. One thing i found interesting is that
when you touch them they would start swiming normally for an hour or two
and
then go back to the bottom. The second shock whas about two month later
when
all of a sudden i have discovered that one of my arowanas was swimming on
the bottom and had trouble swimming up, where it was usually at. Two days
later i saw her bottom up on the bottom of the aquarium and what was
strange
it was looking around and breathing. I saw her swim couple of times but
two
days later she died too. Today one of my eels died also, it was perfectly
healthy this morning, swimming around coming out for worms but at 12
midnight i found it on the bottom with it's belley up, and again it was
somewhat bigger that it should have been. With the eel i noticed that he
started to swim eratically prior to his death and he tried to come up to
the
top for some reason.

Right now one of me new goldfish shows sympthoms of inability to swim up,
it
speeds up and once it gets to the top of the aquarium it slows down and
drops to the bottom, the starts swimming up again.


If anyone has a clue what can cause those sudden deaths and inability for
the fish to swim up to feed i would greatly appreciate it.

Thank you very much



first off, you are mixing the wrong fish. You have cold water and warm
water fish together which is no-no. And why did you put neons and
goldfish in with eels and arrowana's? for food? What kind of eels? You
know arrowana's get 3-4 feet long? A lot of eels get that size also. What
is the temp in the tank? What is the hardness and carbonate hardness? what
about ph? How often do you clean the substrate and change water? What size
tank? what kind of filtration? How large are the arrowana's now?

--

Margolis
http://web.archive.org/web/200302152...qs/AGQ2FAQ.htm
http://www.unrealtower.org/faq

Well

In terms of mixing up a fish i would say that they are very friendly to each
other. At this point after 5 month there is no casualties due to
differences that they have.

The fire Eel that i had just died along with silver arowana which died week
prior


As for the so called hostile fish i have African Butterflyfish who is no
trouble at all since it stays at the top and Black Ghost who lives in the
shell and comes out only when worms fall down.


In terms of Ph i have just checked it and it is around 6.6 and 6.8, Ammonia
is at 0, temperature is at 78.

At this point this is waht i have living in a 45 Gallon tank:

3 Cardinal Tetras (bought with arrowanas and eels at the same time), 3
Platties just got them couple of days ago, 4 Rainbowfish,
1 huge Plecto (had him for a year), 2 Cherry Danios ( bought same time with
eels and arowana) , 1 African Butterfly about 4 inces and Black Ghost who is
about 6 inches.


As for the maintenace, i get about 25% evaporation a week so i just add
water every week. Prior to adding new water i let it sit in the bucket for
couple of days.

For some mystyrious reason my tank does not need much cleaning since for the
past 1.5 years i have never seen an algae growth in it and as for the gravel
cleaning i do it every 3 month.

As for carbonate and substrate, never actually paid attention to it. Was
always only checking for Ph and Ammonia.


Thank you for your help



--
Sincerely

Alexey Semenov
"Margolis" wrote in message
...
"Alexey Semenov" wrote in message
news:vrOAd.14827$152.13372@trndny01...
Hi everyone

I have this issue on my hands where i have already gave up on searching
for
an answer.

It all began with addition of neons and goldfish to an aquarium where i
have
already had two eels and two arowanas.

Anyway two neons and goldfish died in about two week period where i
noticed
that they had hard time coming up to the top to feed, and when they tried
it
seemed like they needed a lot of effort to swim up. Eventually i have
discovered that they stay on the bottom laying on the side and were
looking
around an breathing. Also i have noticed that their bellies became
somewhat
big and got white color to them. In about a day or two after they stayed
motionless on the bottom they died. One thing i found interesting is that
when you touch them they would start swiming normally for an hour or two
and
then go back to the bottom. The second shock whas about two month later
when
all of a sudden i have discovered that one of my arowanas was swimming on
the bottom and had trouble swimming up, where it was usually at. Two days
later i saw her bottom up on the bottom of the aquarium and what was
strange
it was looking around and breathing. I saw her swim couple of times but
two
days later she died too. Today one of my eels died also, it was perfectly
healthy this morning, swimming around coming out for worms but at 12
midnight i found it on the bottom with it's belley up, and again it was
somewhat bigger that it should have been. With the eel i noticed that he
started to swim eratically prior to his death and he tried to come up to
the
top for some reason.

Right now one of me new goldfish shows sympthoms of inability to swim up,
it
speeds up and once it gets to the top of the aquarium it slows down and
drops to the bottom, the starts swimming up again.


If anyone has a clue what can cause those sudden deaths and inability for
the fish to swim up to feed i would greatly appreciate it.

Thank you very much



first off, you are mixing the wrong fish. You have cold water and warm
water fish together which is no-no. And why did you put neons and
goldfish in with eels and arrowana's? for food? What kind of eels? You
know arrowana's get 3-4 feet long? A lot of eels get that size also.
What
is the temp in the tank? What is the hardness and carbonate hardness?
what
about ph? How often do you clean the substrate and change water? What
size
tank? what kind of filtration? How large are the arrowana's now?

--

Margolis
http://web.archive.org/web/200302152...qs/AGQ2FAQ.htm
http://www.unrealtower.org/faq

"Alexey Semenov" wrote in message
news:vrOAd.14827$152.13372@trndny01...
Hi everyone

I have this issue on my hands where i have already gave up on searching
for an answer.

It all began with addition of neons and goldfish to an aquarium where i
have already had two eels and two arowanas.

I will be far more blunt: This is the absolute most moronic conncotion of
fish that I suggest you are a troll of great amplitude. If not, you need to
start from square one with aquaria.

Unbelievable stupidity.

Hate to say this but...
that is why your fish died...honestly its not a matter of how well fish get
along that determines their suitability towards eachother....Goldfish do
produce a ****eload of ammonia which is VERY DEADLY to other types of
fish......as i mentioned in the other NG, the fish are dying from internal
bacterial infections...all the types of fish you mentioned are VERY
different to eachother and require different things....

Please for the sake of the fish, SEPARATE them....they MAY have been fine
for a few months, but now nature is catching up...
"luminos" wrote in message
...

"Alexey Semenov" wrote in message
news:vrOAd.14827$152.13372@trndny01...
Hi everyone

I have this issue on my hands where i have already gave up on searching
for an answer.

It all began with addition of neons and goldfish to an aquarium where i
have already had two eels and two arowanas.

I will be far more blunt: This is the absolute most moronic conncotion of
fish that I suggest you are a troll of great amplitude. If not, you need
to start from square one with aquaria.

Unbelievable stupidity.

"Alexey Semenov" wrote in message
news:vrOAd.14827$152.13372@trndny01...
Hi everyone

I have this issue on my hands where i have already gave up on searching
for an answer.

It all began with addition of neons and goldfish to an aquarium where i
have already had two eels and two arowanas.

Anyway two neons and goldfish died in about two week period where i
noticed that they had hard time coming up to the top to feed, and when
they tried it seemed like they needed a lot of effort to swim up.
Eventually i have
snip

You caused your tank to cycle, if it ever did at all. Goldfish crap heaps
and produce copious amounts of ammonia. If your filter isn't up to it and
you state you don't maintain your tank other than topping up an absurd
amount of evaporated top water then I'm not surprised you have had
everything go to that big tank in the sky.

Poor fish - all of them.

If I were you I'd sort out the heat problem, sort out your biological
filter, do some research into community/tropical/cold water species and stop
being cruel through your apparent ignorance.

Have a great 2005, a better one for any future aquarians you take care of
and may the great Lords Avalokiteshvara and Mayatreya bless you and your
aquarium. May you be enlightened to the realisation that you are playing
with the fate of other sentient beings.

Oz

"Ozdude" wrote in message
...

"Alexey Semenov" wrote in message
news:vrOAd.14827$152.13372@trndny01...
Hi everyone

I have this issue on my hands where i have already gave up on searching
for an answer.

It all began with addition of neons and goldfish to an aquarium where i
have already had two eels and two arowanas.

Anyway two neons and goldfish died in about two week period where i
noticed that they had hard time coming up to the top to feed, and when
they tried it seemed like they needed a lot of effort to swim up.
Eventually i have
snip
Have a great 2005, a better one for any future aquarians you take care of
and may the great Lords Avalokiteshvara and Mayatreya bless you and your
aquarium. May you be enlightened to the realisation that you are playing
with the fate of other sentient beings.

Oz


Goodness gracious, give the man a break :P He comes here to ask for advise,
and all he gets is flaming. How about trying to help him through
constructive advice instead of pouncing on him with name calling and irony.

Not very nice of you IMO. This goes for all the replies to the OP.

"McEve" wrote in message
...
|
| Goodness gracious, give the man a break :P He comes here to ask for
advise,
| and all he gets is flaming. How about trying to help him through
| constructive advice instead of pouncing on him with name calling
and irony.
|
| Not very nice of you IMO. This goes for all the replies to the OP.
|


Agreed. Alexey, please try to glean the info from these posts,
including mine from the other groups you posted to, and ignore the
rest. Good luck to you, and do not let the rudeness of a few
discourage you from returning here for more assistance.

Well thank you for all those comments tells a lot about your knowledge of
the aquariums.

One thing i want to say is THANKS to McEve for a defence.

As you guys may have read, if you did read, at this point i have no gold
fish, third post shows that they all were gone.

Besides i had an aquarium for over two years now and i had many different
setups in terms of fish types. For this particular setup, some of the fish
is over 5 month old and some are over a year old. Prior to all of this new
fish i had same types for over a year but had to give them away to my friend
since they all got too big over time and it was too crowded.


the question was simple what is up with enlarged stomachs and fish laying
upside down for several days still alive and when touched they would swim
normally then go back to the bottom?

Simple ha. If someone has a reasonable information about this issue i would
greatly appreciate it,
but if your knowledge extends up to the point of some read books on which
fish to have and which not, please do not bother with offencive comments.
Trust me there are even stranger tank setups with guramis, oscars, tetras,
arowanas, gars, and angels in the same tank and they live together perfectly
for years, it's just a matter of introducing the fish at the same time
within a week, that is when they do not touch each other.


Thank you all for your help







--
Sincerely

Alexey Semenov
"McEve" wrote in message
...

"Ozdude" wrote in message
...

"Alexey Semenov" wrote in message
news:vrOAd.14827$152.13372@trndny01...
Hi everyone

I have this issue on my hands where i have already gave up on searching
for an answer.

It all began with addition of neons and goldfish to an aquarium where i
have already had two eels and two arowanas.

Anyway two neons and goldfish died in about two week period where i
noticed that they had hard time coming up to the top to feed, and when
they tried it seemed like they needed a lot of effort to swim up.
Eventually i have
snip
Have a great 2005, a better one for any future aquarians you take care of
and may the great Lords Avalokiteshvara and Mayatreya bless you and your
aquarium. May you be enlightened to the realisation that you are playing
with the fate of other sentient beings.

Oz


Goodness gracious, give the man a break :P He comes here to ask for
advise, and all he gets is flaming. How about trying to help him through
constructive advice instead of pouncing on him with name calling and
irony.

Not very nice of you IMO. This goes for all the replies to the OP.

Well thank you for all those comments tells a lot about your knowledge of
the aquariums.

One thing i want to say is thanks to McEve for a defence.

As you guys may have read, if you did read, at this point i have no gold
fish, third post shows that they all were gone.

Besides i had an aquarium for over two years now and i had many different
setups in terms of fish types. For this particular setup, some of the fish
is over 5 month old and some are over a year old. Prior to all of this new
fish i had same types for over a year but had to give them away to my friend
since they all got too big over time and it was too crowded.


the question was simple what is up with enlarged stomachs and fish laying
upside down for several days still alive and when touched they would swim
normally then go back to the bottom?

Simple ha. If someone has a reasonable information about this issue i would
greatly appreciate it,
but if your knowledge extends up to the point of some read books on which
fish to have and which not, please do not bother with offencive comments.
Trust me there are even stranger tank setups with guramis, oscars, tetras,
arowanas, gars, and angels in the same tank and they live together perfectly
for years, it's just a matter of introducing the fish at the same time
within a week, that is when they do not touch each other.


Thank you all for your help

--
Sincerely

Alexey Semenov
"Ozdude" wrote in message
...

"Alexey Semenov" wrote in message
news:vrOAd.14827$152.13372@trndny01...
Hi everyone

I have this issue on my hands where i have already gave up on searching
for an answer.

It all began with addition of neons and goldfish to an aquarium where i
have already had two eels and two arowanas.

Anyway two neons and goldfish died in about two week period where i
noticed that they had hard time coming up to the top to feed, and when
they tried it seemed like they needed a lot of effort to swim up.
Eventually i have
snip

You caused your tank to cycle, if it ever did at all. Goldfish crap heaps
and produce copious amounts of ammonia. If your filter isn't up to it and
you state you don't maintain your tank other than topping up an absurd
amount of evaporated top water then I'm not surprised you have had
everything go to that big tank in the sky.

Poor fish - all of them.

If I were you I'd sort out the heat problem, sort out your biological
filter, do some research into community/tropical/cold water species and
stop being cruel through your apparent ignorance.

Have a great 2005, a better one for any future aquarians you take care of
and may the great Lords Avalokiteshvara and Mayatreya bless you and your
aquarium. May you be enlightened to the realisation that you are playing
with the fate of other sentient beings.

Oz

Thnk you Billy I guess some people are just in the mood to dump all the
negative energy at the end of the year so they go fresh in to 2005


Thnaks again
--
Sincerely

Alexey Semenov
"Billy" wrote in message
...

"McEve" wrote in message
...
|
| Goodness gracious, give the man a break :P He comes here to ask for
advise,
| and all he gets is flaming. How about trying to help him through
| constructive advice instead of pouncing on him with name calling
and irony.
|
| Not very nice of you IMO. This goes for all the replies to the OP.
|


Agreed. Alexey, please try to glean the info from these posts,
including mine from the other groups you posted to, and ignore the
rest. Good luck to you, and do not let the rudeness of a few
discourage you from returning here for more assistance.

"Alexey Semenov" wrote in message
news:iBWAd.13089$113.11373@trndny03...
the question was simple what is up with enlarged stomachs and fish laying
upside down for several days still alive and when touched they would swim
normally then go back to the bottom?

I'm not very experienced with diseases, which is why I didn't post any
advice earlier..... but I tend to believe that what you're experiencing may
be du to a parasite or bacterial infection brought into your new tank by
your recent aquirements? Something affecting their swimbaldder? Do you keep
the fish in quarantine before letting them into the community tank?

Pure speculation from my side though, and I'm sure you'll get better advice
from someone more experienced than me. Which other groups did you post to? I
would like to see the replies if there was a good advice there. It sounds as
though there might have been from Billy's reply here.

Best of luck to you, and I hope you figure out what's wrong in your tank at
present time.

"Billy" wrote in message
...

"McEve" wrote in message
...
|
| Goodness gracious, give the man a break :P He comes here to ask for
advise,
| and all he gets is flaming. How about trying to help him through
| constructive advice instead of pouncing on him with name calling
and irony.
|
| Not very nice of you IMO. This goes for all the replies to the OP.
|


Agreed. Alexey, please try to glean the info from these posts,
including mine from the other groups you posted to, and ignore the
rest. Good luck to you, and do not let the rudeness of a few
discourage you from returning here for more assistance.



Sometimes being rude is earned by the recipient. Surely this individual has
read more about tropical fish over his years of fishkeeping than to do the
almost unthinkable as he outlined. If the answer to that is 'no' then I
suggest no amount of advice will help him.

"Alexey Semenov" wrote in message
news:iBWAd.13089$113.11373@trndny03...

Besides i had an aquarium for over two years now and i had many different
setups in terms of fish types. For this particular setup, some of the fish
is over 5 month old and some are over a year old. Prior to all of this new
fish i had same types for over a year but had to give them away to my
friend
since they all got too big over time and it was too crowded.


the question was simple what is up with enlarged stomachs and fish laying
upside down for several days still alive and when touched they would swim
normally then go back to the bottom?

Simple ha. If someone has a reasonable information about this issue i
would
greatly appreciate it,
but if your knowledge extends up to the point of some read books on which
fish to have and which not, please do not bother with offencive comments.
Trust me there are even stranger tank setups with guramis, oscars, tetras,
arowanas, gars, and angels in the same tank and they live together
perfectly
for years, it's just a matter of introducing the fish at the same time
within a week, that is when they do not touch each other.


Thank you all for your help

--
Sincerely



yea, just ignore what people have been telling you and keep on making fish
sick.

I don't see how pointing out all of the mistakes made is a bad thing. This
whole setup is just asking for disaster. I was just being honest in what I
posted.

You may not like what you hear, but you are doing things completely wrong.
And your experiences are showing this. You think things are going ok
because your fish lived 5 months to a year? these fish should be living
15-20 years at least, the goldfish maybe for 50 years or more.

You need to research the different types of water parameters that the fish
need to be healthy and then keep fishes that like that kind of water
together. Don't keep fish that thrive in 65° water in with fish that need
80° water to thrive. don't keep large aggressive fish with small timid
fish. Don't keep african fish that like very hard alkaline water with south
american fish that like very soft acidic water. Most of it is common sense.

And as for water changes, replacing evaporation is just making your water
more toxic for the fish. The only thing that evaporates is pure water, all
of the waste and other dissolved organic compounds stay in the tank. So the
bad elements are just getting more and more concentrated over time. You
need to top off the tank with pure water to replace the evaporated water
like you are doing. But then you also need to vacuum and siphon the tank
and change some of the water on a regular basis to keep doc's down.



--

Margolis
http://web.archive.org/web/200302152...qs/AGQ2FAQ.htm
http://www.unrealtower.org/faq

"Billy" wrote in message
...

"McEve" wrote in message
...
|
| Goodness gracious, give the man a break :P He comes here to ask for
advise,
| and all he gets is flaming. How about trying to help him through
| constructive advice instead of pouncing on him with name calling
and irony.
|
| Not very nice of you IMO. This goes for all the replies to the OP.
|


Agreed. Alexey, please try to glean the info from these posts,
including mine from the other groups you posted to, and ignore the
rest. Good luck to you, and do not let the rudeness of a few
discourage you from returning here for more assistance.




I don't see how pointing out all of the blatant mistakes is wrong. Name
calling may be out of place, but pointing out some of the many mistakes this
person is making is the best advice somebody can give in this instance.
Just letting somebody continue down this path to destruction is not being
helpful at all.

--

Margolis
http://web.archive.org/web/200302152...qs/AGQ2FAQ.htm
http://www.unrealtower.org/faq

Obviously this person could benefit from your knowledge. Might I suggest a
different approach to a newcomer to the hobby. No one can know all of the
in's and out's of aquaria in just a year or two. We all make mistakes and
learn by reading and posting for the advise of knowledgeably people like
you.

Please take it easy on this poor fellow. I think you can help him allot.

JOhn

"Margolis" wrote in message
...
"Alexey Semenov" wrote in message
news:iBWAd.13089$113.11373@trndny03...

Besides i had an aquarium for over two years now and i had many different
setups in terms of fish types. For this particular setup, some of the
fish
is over 5 month old and some are over a year old. Prior to all of this
new
fish i had same types for over a year but had to give them away to my
friend
since they all got too big over time and it was too crowded.


the question was simple what is up with enlarged stomachs and fish laying
upside down for several days still alive and when touched they would swim
normally then go back to the bottom?

Simple ha. If someone has a reasonable information about this issue i
would
greatly appreciate it,
but if your knowledge extends up to the point of some read books on which
fish to have and which not, please do not bother with offencive comments.
Trust me there are even stranger tank setups with guramis, oscars,
tetras,
arowanas, gars, and angels in the same tank and they live together
perfectly
for years, it's just a matter of introducing the fish at the same time
within a week, that is when they do not touch each other.


Thank you all for your help

--
Sincerely



yea, just ignore what people have been telling you and keep on making fish
sick.

I don't see how pointing out all of the mistakes made is a bad thing.
This
whole setup is just asking for disaster. I was just being honest in what
I
posted.

You may not like what you hear, but you are doing things completely wrong.
And your experiences are showing this. You think things are going ok
because your fish lived 5 months to a year? these fish should be living
15-20 years at least, the goldfish maybe for 50 years or more.

You need to research the different types of water parameters that the fish
need to be healthy and then keep fishes that like that kind of water
together. Don't keep fish that thrive in 65° water in with fish that need
80° water to thrive. don't keep large aggressive fish with small timid
fish. Don't keep african fish that like very hard alkaline water with
south
american fish that like very soft acidic water. Most of it is common
sense.

And as for water changes, replacing evaporation is just making your water
more toxic for the fish. The only thing that evaporates is pure water,
all
of the waste and other dissolved organic compounds stay in the tank. So
the
bad elements are just getting more and more concentrated over time. You
need to top off the tank with pure water to replace the evaporated water
like you are doing. But then you also need to vacuum and siphon the tank
and change some of the water on a regular basis to keep doc's down.



--

Margolis
http://web.archive.org/web/200302152...qs/AGQ2FAQ.htm
http://www.unrealtower.org/faq

Thank you very much to everyone who tried to help and gave a possible
solution to the problem.

I have eventually figured out a problem and fixed it. Believe it or not some
of the fish recovered after a 12 hour period and two more fishes began to
look better (at least i can see them in teh middle of the aquarium instead
of on the bottom.

It was a Ph level. To tell u the truth i have purchased an electronic Ph,
Ammonia, and nitrate reader for 70 bucks. Compared to the colored charts it
gives u numbers and makes things much easier. My Ph was Hi even thought to
mee it seemed normal after compairing tube with chart. I guess i was wrong
at picking the right color. After i have lowered Ph level everything went
back to normal.


Thank you very much again.

I really apprecite help of all those who wanted to help.


Best wishes and have a grait new year.


P.S. If someone needs a link to the electronic tester here is a link

and a name of the product

pHep Tester

http://www.drsfostersmith.com/produc...incerelyAlexey Semenov"Alexey Semenov" wrote in messagenews:vrOAd.14827$152.13372@trndny01... Hi everyone I have this issue on my hands where i have already gave up on searchingfor an answer. It all began with addition of neons and goldfish to an aquarium where ihave already had two eels and two arowanas. Anyway two neons and goldfish died in about two week period where inoticed that they had hard time coming up to the top to feed, and when theytried it seemed like they needed a lot of effort to swim up. Eventually ihave discovered that they stay on the bottom laying on the side and werelooking around an breathing. Also i have noticed that their bellies becamesomewhat big and got white color to them. In about a day or two after theystayed motionless on the bottom they died. One thing i found interesting isthat when you touch them they would start swiming normally for an hour ortwo and then go back to the bottom. The second shock whas about two monthlater when all of a sudden i have discovered that one of my arowanas wasswimming on the bottom and had trouble swimming up, where it was usually at.Two days later i saw her bottom up on the bottom of the aquarium and whatwas strange it was looking around and breathing. I saw her swim couple oftimes but two days later she died too. Today one of my eels died also, itwas perfectly healthy this morning, swimming around coming out for worms butat 12 midnight i found it on the bottom with it's belley up, and again itwas somewhat bigger that it should have been. With the eel i noticed thathe started to swim eratically prior to his death and he tried to come up tothe top for some reason. Right now one of me new goldfish shows sympthoms of inability to swim up,it speeds up and once it gets to the top of the aquarium it slows down anddrops to the bottom, the starts swimming up again. If anyone has a clue what can cause those sudden deaths and inability forthe fish to swim up to feed i would greatly appreciate it. Thank you very much -- Sincerely Alexey Semenov