Zoas dieing no nudis now what?

[jasper24]

Well I thought that I had nudis because my Zoas were closing up and disappearing so I dipped each colony and no nudis. Now I have noticed on some that are closed up that the stalk or stem is turning brown. Any ideas on what this is? Parameters are below and are all good. Other inhabitants in the tank are 2 clams, various sps, lps, ricordea, etc all look fine. Fish are fine and eating well.

SG 1.025
DKH 9.6
Calcium 385 (Working to get this up to 400 +)
PH 8.2
0 Nitrites / Nitrates / Ammonia
Temp 79-81

58G RR w 20G sump. Aqualight Pro 150W 14K Phoenix w 2 x 65W actinics. Corlaife Super Skimmer. 10% water changes weekly. Feed cyclopeeze and DT's a few times per week.

Thanks!

 

[Pinksteel]

could try a bristle worm trap and see if you catch any big ones, they sometimes eat things like that.

 

[Zoalander]

if they are turning brown might be some kind of a fungus. Smell the colonys that are turning brown, if they smell like sewage or morning breath then I'm going to go with fungus.

 

[jasper24]

If it is a fungus what should I do to try and save them?