What are they?

[mgoos]

We were looking in our 75 gallon that is FULL of corals and spotted some little snow white zoanthids growing on a rock. They're not bleached out because everything around them has good color and they're fed regularly. They're growing and slowly multiplying. Any idea what this could be?

 

[scopus tang]

There are some white zoas out there - most commonly those that are associated with the orange sponge, and are non photosynthetic. There is also a white PE (although it is not truly all white). Most cases of white zoanthids that I've heard of do turn out to be a bleached zoas, but who knows. Lets see a picture.

 

[mgoos]

Since we noticed them we've been paying better attention and they are in fact bleached. Sucks, we were excited about them.