Yet another ID...

[mikeandjenn99]

Any ideas what these are? They are grouped like zoanthids, but they have a lot fewer tentacles. They are on the underside of one of my rocks, so they don't get much light at all. They don't look like anemones at all to me.

 

[fareforce]

If it looks like this it is a cup coral:

The cup coral is a filter feeder coral with tenticles extended looking for filter food in the water. They eat phytoplankton and other microscopic bits of food and zooplankton. Photo: dsp

 

[mikeandjenn99]

Like I said, they are on the underside of one of my rocks, so they don't get much light. Should I try and break the rock off around them and move them into the light?

 

[fareforce]

I wouldn't worry about it. It looks like they are cup corals. I have had some on the underside of my rock for almost 2 years.. They are more of a filter feeder..

 

[Paintbug]

cup corals dont like light either. they will be fine where they are.