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View Full Version : What's this thing growing on my live rock??


bimmer88
06/08/2011, 07:05 PM
This thing started out pretty small... about 1 inch... now it's grown to about 3 inches... looks kind of like it has mouths... what is this thing?? some type of coral?? No color.. just looks like some kind of gray blob...

cloak
06/08/2011, 07:29 PM
Tunicate?

bimmer88
06/08/2011, 08:03 PM
don't think it's a tunicate... i'm not really familiar with them but a quick google image search comes up with pictures that look completely different.... also some reading shows tunicates are filter feeders... i never feed my tank and this thing is thriving...

cloak
06/08/2011, 08:07 PM
How does it feel to the touch?

bimmer88
06/08/2011, 08:09 PM
How does it feel to the touch?
feels soft and meaty...

greech
06/08/2011, 08:12 PM
Thinking its a sponge.

bimmer88
06/08/2011, 08:17 PM
Thinking its a sponge.
aren't sponges filter feeders as well?? I don't feed any filter feeder type of foods to my tank and it's in an area with no flow...

greech
06/08/2011, 08:26 PM
Yes they are. Did you just discover this or did this come on a some new liverock? I have several sponges growing in the back of may tank and in dark places and I never feed them anything specific either. Have had them for a year + and they just keep on growing.

Ducati 911
06/08/2011, 08:27 PM
Thinking its a sponge.

Agreed, Those openings look like the osculms of a sponge. It might live for a while longer but it will probably end up starving.

thebkramer
06/08/2011, 08:27 PM
This thing started out pretty small... about 1 inch... now it's grown to about 3 inches...

aren't sponges filter feeders as well?? I don't feed any filter feeder type of foods to my tank and it's in an area with no flow...

Sounds like its getting all the food it needs!! :lol2:

looks like a chickens liver!! :eek1:

greech
06/08/2011, 08:31 PM
Interestingly enough (just down the page a bit)...

http://www.reefcentral.com/forums/showthread.php?t=2029855

Ducati 911
06/08/2011, 08:32 PM
Do a search for Clathria(sp?) Its a type of sponge that usually comes as a hitchiker, looks like what you have.

bimmer88
06/08/2011, 08:48 PM
yup... looks like chicken liver sponge, or Condrilla nucula