What is this creature?

[Shufflepig]

Bought a new zoa frag on Wednesday and last night when I shined a light in the tank to check things out the entire frag moved. Noticed these 1/4 inch long by 1/8 inch wide openings between the zoa polyps. When I shine a light on them they totally close moving the whole frag. No idea what this is. Could it be a clam that the zoa grew over? Very strange looking

 

[KJ]

Look like Bivalve.

 

[Shufflepig]

Look like Bivalve.

So would you consider this a bonus or a problem?

 

[saltyfilmfolks]

Def a bi valve. Pretty cool.

 

[reef lover]

Cool!!

 

[Shufflepig]

Cool!!

Very cool. Kids are afraid of it lol

 

[KJ]

So would you consider this a bonus or a problem?

Bonus not a problem

 

[Maritimer]

Would consider it a bonus. Bivalves (clams, oysters, mussels, scallops) are filter-feeders, and do little to no harm. The catch being that if there's not enough suspended food in your water, the critter may not survive.

~Bruce

 

[Shufflepig]

Would consider it a bonus. Bivalves (clams, oysters, mussels, scallops) are filter-feeders, and do little to no harm. The catch being that if there's not enough suspended food in your water, the critter may not survive.

~Bruce

Feed the tank Reef Roids twice a week. Do you think that would support him?

 

[Maritimer]

Wish I could say for certain ... often, these bivalves don't last long in most reef aquaria. In a system that's designed for NPS, they might fare better, as both the NPS and the oysters are being fed. Twice a week ... might not be enough. More often ... might strain your nutrient export systems.

~Bruce

 

[reef lover]

Ive had one in the nem tank that came in on lr. Hes been going strong with no help from me for 3 years..

 

[Shufflepig]

Ive had one in the nem tank that came in on lr. Hes been going strong with no help from me for 3 years..

Excellent to know. Thanks. He’s actually very neat looking. Not sure why I didn’t notice him at the LFS before I bought the frag. Must’ve been closed up