DurTBear
Aquarium Advice Activist
I recently purchased these zoas about 2-3 weeks ago and they have been doing find until this past week. I think something might be feeding on them but I don't know what. I don't see any nudis. But I see a lot of amphipods running around in them which causes them to close up. There is also that unknown crab that is living close to them which might be a prime suspect as well. I haven't had any success in catching him because he is so shy and never comes out. If you haven't read my old thread on this hitchhiker crab, here's the link:
http://www.aquariumadvice.com/viewtopic.php?t=95571
Anyway, here is a pic of the zoas that are having problems. I've ruled out water conditions since all the readings are within the correct range and other zoas in my tank are fine. There are also a couple worm like things on the rock which might be spionid worms. They are thin and stringy and if you look closely in the pic, you can see an example on the top/right edge of the colony. Any suggestions?
http://www.aquariumadvice.com/viewtopic.php?t=95571
Anyway, here is a pic of the zoas that are having problems. I've ruled out water conditions since all the readings are within the correct range and other zoas in my tank are fine. There are also a couple worm like things on the rock which might be spionid worms. They are thin and stringy and if you look closely in the pic, you can see an example on the top/right edge of the colony. Any suggestions?