what happen to my zoo?

[cooltankmate]

ok, i have this zoo for a week. but up until yesterday. it doesn't open up at all. only few of them, but those not even fully open up....i notice that the bigger light brownish polyps have been growing like crazy. you can see it from the 1st pic. there were only 5 of them. but there are 15+ of them now....what happen? did those brownish polyps kill my green skirt zoos???
by the way, my other 2 zoo frag are fine. only this one have the problem. it's a 30g tank with 192w PC

it looks like this for a week



then yesterday.....

[piberoptikz]

Have you tried moving it? what's your water param? Also what type of lights are you using?

[Loverotties]

Maybe to much flow?

[Casey]

I would pluck the brown buttons off they will outgrow and kill the zoes.

[skeety]

man...whoever put that frag together wasn't too bright.

Those brown polyps don't look like zoa's to me. They look like Palythoa's. Much bigger, and a bit more potent. (i.e. They're KILLING the neighboring zoa's).

[piberoptikz]

I also have a piece of paly in my polyp colony. So i better pluck it off also before it gives me problem soon. Tnx guys~

[menelaus22]

you can also use joe's juice or kalc to melt the polyps off. Use a syringe if you do it this way and be mindful not to get it on the green skirt zoa's.

If you do pluck it, be sure to use gloves and be mindful because a lot of these might be poisonous.