Ball Tip Anemone

[all4wheels2]

Does anyone have any experience with these? I'm pretty sure that's what I have. I think the technical name is Pseudocorynactis - but mine is all clearish/white, no color, but very distinct ball tips.

I got a piece of Fiji live rock today and there are about 5-6 of these things on it - all different sizes. I didn't see them until I turned the lights out.

I don't want my fish to die

[francis]

post pics it will help everyone a lot

[mr_X]

if they are pseudocorynactis, you have nothing to worry about. we don't get the big fish eating types on our live rock.

[kay-bee19]

Yes, the smaller pseudocorynacis are harmless non-photosynthetic filter feeders, living off of any particulates and possibly pods they may capture. I've got a few of the small ones in my reef tank.

As I understand it pseudocorynactis are type of corallimorph (related more to mushroom 'corals' than anemone's though they are very anemone-like ).

The larger one's (~6" in diameter) are indeed the fish-eating type as Mr. X indicated. In fact they can pose a serious threat to anything in the tank that comes in contact with them (fish, snails, crabs, urchins, corals, and probably the human hand). They're not as transparent as the smaller harmless ones.

I have one of the larger pseudocorynactis in an isolated tank. Completely non-photosynthetic, I feed it two thawed silverside fish every week. This is the type you don't want in your tank: