Web like thing cover zoas

[Kessler]

I bought a small colony from my LFS about 2 weeks ago and I fragged out a few pieces and left the big piece in my fuge. Some of the zoas I fragged out didn't make it but the some seemed fine, so I didn't think anything about it. I did a WC yesterday but then this morning I noticed a white web like thing covering part of the colony in the sump. Anyone have any idea what caused this? Any measures I should take when I get back home?

I don't have my params and I'm not home, but tank is around 80-82F and has a salinity of 1.025. 40B with 20L sump. It is in the fuge under 13W of light. Tank is about 3 months old.

If it's related, one frag in the tank just seemed to not make it while the other looked okay for a few days and the turned white (almost like it was bleaching).

I've attached a pic of the colony. I'm thinking I should take it out and frag off the healthy ones.
Thanks!

 

[lhscouchmonster]

im interested in this too. this happened to me before but about 1/4 of the total size of "webbing". i cleaned it off by gently brushing and using a small baster. it never came back and the zoas were fine.

 

[worm5406]

Fresh water (rodi) dip it. Only for about 10 seconds. Then place it back in your tank.

Make sure the polyps close up first.

 

[Kessler]

Great to know that yours came back! I brushed it off and it came back, so I brushed it off and did a short rodi dip. I removed the ones that looked dead/dying and the web hasn't come back yet. The others seem to be doing okay, except my DT ones that I fragged seem to be slowly dying. I'll try to let these settle for longer before I frag them out.