Galaxea Coral ditching polyps

[Ryan1190]

So I bought a Galaxea from a fellow reefer and was one of the 1st coral I added. It has been ditching polyps and looks pretty bad, any idea what may be causing this? Initially I had it placed on the sand, then moved it up on the rocks and into heavy flow which is when it starting going down hill and retracting polyps. I moved it back down to the sand and things have not turned around. I'll take pics when the lights come on a little later. My other corals seem fine.

Ammonia 0
Nitrite 0
Nitrate 0
Calcium 380
Mag 1250
Alk 8.1
SG 1.025
Reefbreeder photon LEDs

 

[organism]

What are your lights set to? Sounds like you burned it then blew the flesh off.

 

[Ryan1190]

Trying to post a smaller picture...

 

[Ryan1190]

What are your lights set to? Sounds like you burned it then blew the flesh off.

They max out around 75% white and 45% blue for an hour after ramping up then down, no idea what that is in terms of PAR. Lights are about 8 inches off the water. Coral was another 8inches under the water surface.

 

[Ryan1190]

Also, shouldn't it recover once towards the bottom of the tank? It's been there for 3 weeks or so

 

[organism]

omg that is a huge amount of white light, what do your other corals look like?

 

[Ryan1190]

Sooo I should cut back? Other than the galaxea I only have a frogspawn and some ricordea. Here's the frogspawn.

 

[Ryan1190]

I lowered my lights significantly. What should I be watching for, clues to know if lighting is too much or too little? Hopefully a sign before corals start ditching polyps

 

[organism]

I would lower the whites significantly, like 80-100% blues and 20%ish whites if not less. You could even do 0 whites for a bit if your corals all look a little light. imo that frogspawn's a little translucent.