UV Sterilizer

true. it is the asymptomatic fish that often spreads the most disease especially when
stressed. fish CARRY disease, altho over time if the conditions are good the fish
will gradually eliminate most diseases, but then they become susceptible as the
challenge to their immune system wanes, so does their immunity.
one reason I advocate the "closed tanks or pond" system. once your tank is stocked,
no new fish are added, even from another tank. Ingrid

You wrote:

On Mon, 10 Jul 2006 11:55:16 -0500, "Koi-Lo" ¤?¤@ö½.Õ..Õ¢ wrote:

No it wouldn't work that way either. As soon as the fish are moved to
the new clean tank with sterilized water they will immediately start
shedding disease into the water.

ONLY if they have some disease already "in progress."

No that's wrong. As I said think of Typhoid Mary. She NEVER have
full blown Typhus yet continued to make ppl sick through her cooking
throughout her adult working life. Also think of viruses like Herpes
simplex and HPV. Almost everyone has or passes them along without
active illness. Many ppl, even though infected and contagious, never
get the sores or cancer these can cause.

Also if what you're saying were true no one would ever give advice to
run closed GF tanks.



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On Thu, 13 Jul 2006 16:53:24 GMT, wrote:

true. it is the asymptomatic fish that often spreads the most disease especially when
stressed. fish CARRY disease, altho over time if the conditions are good the fish
will gradually eliminate most diseases, but then they become susceptible as the
challenge to their immune system wanes, so does their immunity.
one reason I advocate the "closed tanks or pond" system. once your tank is stocked,
no new fish are added, even from another tank. Ingrid

Right. This all makes sense to me. I know this is your position and
clearly a closed tank or pond is a very conservative and therefore a
very safe way to go.

I guess what I want to know is why I only see "closed tank" discussed
among GF ppl. And why are things like UV or very long quarantine
periods (i.e. a year as some suggest) not sufficient.

Does the answer have to do with unique characteristics of the specific
diseases GF tend to carry, GF behaviors/transmission modes, and/or
their immune system? Yes all these things have been alluded to but I
don't quite see why say a very long quarantine period followed by
introduction to a well maintained tank with UV won't address much if
not all of this. Certainly this on par with or more than recommended
practice for most marine or tropical setups. I also would imagine if
contagiousness & immune system weakness of older coddled GF were
really that severe to necessitate "closed tank" then cross
contamination from tools servicing multiple tanks would also be a
significant issue.

Of course I'm not making any claims. I'm just trying to understand
why closed tank is "necessary" and not just "wise" or "conservative."

"Jolly Fisherman" wrote in message
...
Of course I'm not making any claims. I'm just trying to understand
why closed tank is "necessary" and not just "wise" or "conservative."
==================
I've had GF for years and breed them right behind my house in 150 to 680g
tanks. I don't see it as "necessary" to close the tanks to new fish that
are carefully quarantined and treated for parasites. Parasites were always
the biggest problem with them. Ulcers were the biggie with their close
relatives, the koi carp. Once you remove any parasites they may be
carrying, keep them in good healthy conditions and feed them well - they
thrive and reproduce rapidly and prolifically.
--
KL....
Frugal ponding since 1995.
Aquariums since 1952.
My Pond & Aquarium Pages:
http://tinyurl.com/9do58
~~~~ }((((* ~~~ }{{{{(ö ~~~~ }((((({*

On Fri, 14 Jul 2006 10:07:36 -0500, "Koi-Lo" ¤?¤@ö½.Õ..Õ¢ wrote:

"Jolly Fisherman" wrote in message
.. .
Of course I'm not making any claims. I'm just trying to understand
why closed tank is "necessary" and not just "wise" or "conservative."
==================
I've had GF for years and breed them right behind my house in 150 to 680g
tanks. I don't see it as "necessary" to close the tanks to new fish that
are carefully quarantined and treated for parasites. Parasites were always
the biggest problem with them. Ulcers were the biggie with their close
relatives, the koi carp. Once you remove any parasites they may be
carrying, keep them in good healthy conditions and feed them well - they
thrive and reproduce rapidly and prolifically.

What medicine/what is your treatment for new fish?

"Jolly Fisherman" wrote in message
...
On Fri, 14 Jul 2006 10:07:36 -0500, "Koi-Lo" ¤?¤@ö½.Õ..Õ¢ wrote:

"Jolly Fisherman" wrote in message
. ..
Of course I'm not making any claims. I'm just trying to understand
why closed tank is "necessary" and not just "wise" or "conservative."
==================
I've had GF for years and breed them right behind my house in 150 to 680g
tanks. I don't see it as "necessary" to close the tanks to new fish that
are carefully quarantined and treated for parasites. Parasites were
always
the biggest problem with them. Ulcers were the biggie with their close
relatives, the koi carp. Once you remove any parasites they may be
carrying, keep them in good healthy conditions and feed them well - they
thrive and reproduce rapidly and prolifically.

What medicine/what is your treatment for new fish?
========================================
I use several. All new fish get the Quick-Cure treatment the first week.
I also may use Aquarasol and/or Clout. Clout is excellent for flukes. I
haven't seen flukes or anchor worms (on new fish) in a few years though. I
watch all new fish very carefully for 3 weeks. If I see anything suspicious
I'll hold them over another week or two in the Q-tank.
--
KL....
Frugal ponding since 1995.
Aquariums since 1952.
My Pond & Aquarium Pages:
http://tinyurl.com/9do58
~~~~ }((((* ~~~ }{{{{(ö ~~~~ }((((({*

I am late on this subject, but as someone who has worked professionally
with UV Sterilizers (and development) I feel I can add some important
points.
* UV sterilizers do not kill everything, especially many large
protozoan parasites, but when used PROPERLY they are an effective means
of disease prevention (but not the only)
*When UVs do not work it is because of poor contact time or poor UVC
contact with the water. I have gone out on service calls where the
customer has bought a UV from a dishonest or unknowledgeable dealer
that has no chance of working under the conditions presented. Example
(from a real customer): A Lifeguard 8 watt quartz UV connected to a 100
gallon aquarium, run by a 700 gph pump. WRONG! First the Lifeguard 8
wattUV is a poor quality UV with poor light contact with the water;
second, the water flow rate is three times too fast for proper contact
time.
* UV sterilizers also help with the Redox potential which indirectly
helps with fish health via better water quality.
For much more information about how UV Sterilizers work, as knowing how
they work is important in knowing what they can and cannot do., please
read this article:
http://aquariumuvsterilizer.blogspot.com/

Carl

"carlrs" wrote in message
ups.com...
* UV sterilizers also help with the Redox potential which indirectly
helps with fish health via better water quality.
For much more information about how UV Sterilizers work, as knowing how
they work is important in knowing what they can and cannot do., please
read this article:
http://aquariumuvsterilizer.blogspot.com/

=====================
Thanks Carlrs.
--
KL....
Aquariums since 1952.
My Pond & Aquarium Pages:
http://tinyurl.com/9do58
~~~~ }((((* ~~~ }{{{{(ö ~~~~ }((((({*