Pod ID?

If you could take a moment to glance at http://www.cearbhaill.com/misc.htm
and possible identify the creatures swarming on my glass?
They are fairly large- larger than the normal things I have come to accept-
a tad over ¼ inch each. The odd part is that I am seeing them only in my
overflow and in the sump, and there are 100's of them. Despite the numbers I
can't see even one in the display or in the refugium.

Tank is new- cycle completed the end of January, and contains only a TBS
"package".
Last readings were SG 1.024, pH 8.1-8.5 daily fluctuation, 80.5 ºF, amm 0,
nitrite 0, nitrate 10, calcium 400, alk 3.99 meq/L.
90 gallon tank, 20 gal refugium, 14 gal sump, Euroreef CS6-1 and T5
lighting.


Please tell me they are normal fauna- and benign?


--
Toni
http://www.cearbhaill.com/reef.htm

"Toni" writes:

If you could take a moment to glance at
http://www.cearbhaill.com/misc.htm and possible identify the
creatures swarming on my glass?

The animal in the cup with the dime looks like an immature mantis
shrimp. Article on mantis shrimp he

http://reefkeeping.com/issues/2004-0...ture/index.htm

As the article discusses, Mantis Shrimp are generally considered
a nuisance animal and most people try to get them out of their
tanks simply because they are such effective predators.

The other photos are less clear, but if they're the same as what
you've caught in the cup, well... Otherwise, I would suspect that
they are mysid shrimp, aka "possum shrimp". Mysids are beneficial
and are a good food source for fish with nonspecific diets. Article:

http://reefkeeping.com/issues/2004-02/rs/index.htm

They are fairly large- larger than the normal things I have come to
accept- a tad over 1 inch each. The odd part is that I am seeing
them only in my overflow and in the sump, and there are 100's of
them. Despite the numbers I can't see even one in the display or in
the refugium.

If you have a breeding pair of adult mantis shrimp in the main tank,
they would be successfully hunting all of the little ones that they
could reach, mantis or mysid.

Tank is new- cycle completed the end of January, and contains only a TBS
"package".

The live rock from TBS will many times contain a few unpleasant
hitchhikers, mantis shrimp and gorilla crabs being the ones you need
to take special care to eradicate. That one issue aside, I still
recommend them to everyone simply because what you get is actually
"alive", in stark contrast to the barely biological rubble shipped
from various places in the Pacific.

In any case, read the articles above and come up with a plan for your
particular situation.

Good luck!

Regards,
Ross

-- Ross Bagley http://rossbagley.com/rba
"Security is mostly a superstition. It does not exist in nature...
Life is either a daring adventure or nothing." -- Helen Keller

"Ross Bagley" wrote in message
...

The animal in the cup with the dime looks like an immature mantis
shrimp. Article on mantis shrimp he



Sorry for explaining poorly-
The first two photos are of the creatures in question.
Someone else has suggested that they are scyphoid larvae, but I am unable to
find photo confirmation.


--
Toni
http://www.cearbhaill.com/reef.htm

Ross is correct, the large one is a mantis shrimp, no doubt about that.

The others look like Amphipods, they are not structured right for Opossum shrimp.
Go here for a look , view them all
http://scilib.ucsd.edu/sio/nsf/fguide/arthropoda-1.html

http://www.mov.vic.gov.au/crust/page1.html

There is no such thing as a scyphoid larvae, other than a scyphoid, which is a jellyfish,
which these are not. Scyphoid, is also a structure name which means cup shaped or cup
like. Hence the name for jelly fish.
--
Boomer

Want to talk chemistry ? The Reef Chemistry Forum
http://www.reefcentral.com/vbulletin/index.php

Want to See More ?
Please Join Our Growing Membership
www.coralrealm.com

If You See Me Running You Better Catch-Up
"Toni" wrote in message
ink.net...
:
: "Ross Bagley" wrote in message
: ...
:
: The animal in the cup with the dime looks like an immature mantis
: shrimp. Article on mantis shrimp he
:
:
:
: Sorry for explaining poorly-
: The first two photos are of the creatures in question.
: Someone else has suggested that they are scyphoid larvae, but I am unable to
: find photo confirmation.
:
:
: --
: Toni
: http://www.cearbhaill.com/reef.htm
:
:

"Boomer" wrote in message
...
The others look like Amphipods, they are not structured right for Opossum
shrimp.
Go here for a look , view them all
http://scilib.ucsd.edu/sio/nsf/fguide/arthropoda-1.html

http://www.mov.vic.gov.au/crust/page1.html



Thanks- Dr. Shimek has identified them as sponges.


--
Toni
http://www.cearbhaill.com/reef.htm

"Thanks- Dr. Shimek has identified them as sponges."

LOL

I see it know. I'm sure Ross is hitting is heads also. I think we should have asked you if
they move. As from the pics they look like a crustacean population explosion. The word you
are lookin' for is Sypha sponges or Syconoid Sponges, not Scyphoid :-)

http://www.vattenkikaren.gu.se/fakta...ko/klek09.html

http://www.biol.rug.nl/onderwaterbiologie/foto9.jpg


http://www.seamasters.be/bio/spons/zakspons.htm

--
Boomer

Want to talk chemistry ? The Reef Chemistry Forum
http://www.reefcentral.com/vbulletin/index.php

Want to See More ?
Please Join Our Growing Membership
www.coralrealm.com

If You See Me Running You Better Catch-Up
"Toni" wrote in message
nk.net...
:
: "Boomer" wrote in message
: ...
: The others look like Amphipods, they are not structured right for Opossum
: shrimp.
: Go here for a look , view them all
: http://scilib.ucsd.edu/sio/nsf/fguide/arthropoda-1.html
:
: http://www.mov.vic.gov.au/crust/page1.html
:
:
:
: Thanks- Dr. Shimek has identified them as sponges.
:
:
: --
: Toni
: http://www.cearbhaill.com/reef.htm
:
:

"Toni" writes:

"Boomer" wrote in message
...
The others look like Amphipods, they are not structured right for Opossum
shrimp.
Go here for a look , view them all
http://scilib.ucsd.edu/sio/nsf/fguide/arthropoda-1.html

http://www.mov.vic.gov.au/crust/page1.html

Thanks- Dr. Shimek has identified them as sponges.

There are plenty of times that I think I've got a clue about marine
tanks and then along comes something like this. Amazing.

Thanks for the links Boomer.

Reef tanks are simply awesome.

Regards,
Ross

-- Ross Bagley http://rossbagley.com/rba
"Security is mostly a superstition. It does not exist in nature...
Life is either a daring adventure or nothing." -- Helen Keller

I also have a bunch of these in my skimmer. Should I clean them out?


"Toni" wrote in message
ink.net...
If you could take a moment to glance at http://www.cearbhaill.com/misc.htm
and possible identify the creatures swarming on my glass?
They are fairly large- larger than the normal things I have come to
accept-
a tad over ¼ inch each. The odd part is that I am seeing them only in my
overflow and in the sump, and there are 100's of them. Despite the numbers
I
can't see even one in the display or in the refugium.

Tank is new- cycle completed the end of January, and contains only a TBS
"package".
Last readings were SG 1.024, pH 8.1-8.5 daily fluctuation, 80.5 ºF, amm 0,
nitrite 0, nitrate 10, calcium 400, alk 3.99 meq/L.
90 gallon tank, 20 gal refugium, 14 gal sump, Euroreef CS6-1 and T5
lighting.


Please tell me they are normal fauna- and benign?


--
Toni
http://www.cearbhaill.com/reef.htm