Weird LPS disease?

[euromomtx]

My LPS have been doing great but then all of a sudden I had several die.
They seem to be fine one day, then the next the whole fleshy part peels off the skeleton.
I had this happen to a frog spawn, a duncan colony, a dendro colony and a candy cane. Water parameters seem fine (system been running for a year).
What's going on? I've never witnessed such rapid change from perfectly happy to completely peeling off!

 

[jeepguy242]

what do you mean by water seems fine, whats your ph, alk, nitrate, ther is obviously something wrong somewhere if its not an isolated incident

 

[euromomtx]

pH 8.0 in the early morning to 8.25 right before lights out, alk 12 dkh, ammonia, nitrite, phosphate and nitrate all measure 0 but I have quite a bit of macro/algae to eat it up, temp is between 78 and 79 in a 24 hour period, calcium is at 410, magnesium is at 1300

 

[weeftard]

Same thing kept happening to me, i lost 3 frogspawns, 2 hammers and 2 torchs. For no reason params where in order. A month ago i went out and bought a walled frogspawn and a nice size hammer and both have been doing fine. It was really driving me nuts, i just told myself it was probably stressed batch from my lfs because they where all from the same shipment and all the ones in their tanks died as well. How long have you had them in your tank?? What kind of flow are they in??

 

[euromomtx]

they were all acquired from different places at different times.
one day they are open and completely fine -the next day peeling off!
I have Vortechs so there's quite a bit of flow but in a pretty wide stream.

 

[weeftard]

Well it was sugested to me that if they are in too much flow it can blow the tissue and cause it to tear. Do you see any brown discharge leaking from them??

 

[euromomtx]

I suspected that at first and moved the Duncans (although they had been fine in that spot for several months) but some were really not in heavy flow at all.
There is no brown discharge -just clean white skeleton.

 

[weeftard]

you can be glad its not brown jelly disease i hear that it wipes out corals in days. Any new additions to the tank??

 

[euromomtx]

I am on a budget so I have just been adding things over the last year. Nothing specific that I can remember that set it off.