Frogspawn flesh receeding overnight

[Swiftler]

Hey guys and gals,

I was hoping someone would have some insight and/or advice into my current situation. My frogspawn, which started as 1 head and is now 15+, has within the last 48 hours lost almost all of its flesh. It didn't flake or peel off, it's just pulling up the stalk towards the heads. It's looking a little paler too.

My parameters are:
Salinity: 1.025
Temp: 79
Ammonia: 0.25
Nitrate: 10
Nitrite: 0
pH: 8.0
KH: 161 (9 drops)
Cal: 520 (26 drops)
Phos: 0.25

The latest maintenance done was the removal of the pumps one at a time, soaked over night in 50-50 vinegar and fresh, rinsed thou roughly and reinstalled. I did soak one of the intake foams because it was covered in coralline algae. Could some vinegar be leaching out causing the stress. Also as for lighting, it's has been 4 T5's with recently changed bulbs last month that are all one for about 5 hours a day and the atinics for 11 hours.

 

[melosu58]

Are these HO lights. Also you might want to google brown jelly disease. It happens to a bunch of the LPS corals.

 

[Swiftler]

Sorry yes, they are HO. So far I have not seen any brown slime appearing anywhere on the coral or the three frags that I have in the tank from the original stalk.

 

[Swiftler]

Here is a picture. There are no other corals around it to get stung by either. My toadstool, zoas, and GSP are doing fine.