Why would my Green Galaxea Coral turn brown?

[Highland Reefer]

When I purchased the green galaxea it was a pretty green, but after several months it has turned brown. From what I've read they need strong light and stronger current. I have it under metal halides and it is getting a good current. I looked on the internet, but could not find any references to this. Anybody else ever have this happen?

[GaryL]

what kelvin rating is your lights? i have seen alot of corals go brownish if your color temp is low...under 10000k.

 

i know this post is a few days old so did it color back up? and hows it doin?

[Highland Reefer]

what kelvin rating is your lights? i have seen alot of corals go brownish if your color temp is low...under 10000k.

 

i know this post is a few days old so did it color back up? and hows it doin?

 

I am using 400 W. 14,000 K bulbs on a 110 g. High. The coral seems healthy other than the color changing from green to brown. This occured about 1.5 months ago. Maybe it is under too much light? I could move it lower down in the tank.

Edited May 29, 2008 by Highland Reefer

[davelin315]

Could be protecting itself from too much light. You have as much light over your tank as I do over my 300 that is 32" deep, so I'm guessing that's it.

[Highland Reefer]

Sounds like I am going to have to make a run down to DC & borrow the Par Meter & see what is going on in my tank. All the other corals are doing good, so I'll try moving it down lower in the tank for now. I appreciate your imput.

[Jen-gineer]

Sounds like I am going to have to make a run down to DC & borrow the Par Meter & see what is going on in my tank. All the other corals are doing good, so I'll try moving it down lower in the tank for now. I appreciate your imput.

Every time i've seen a coral turn brown it's been from too much light or a high temperature event (like 85+).

[Highland Reefer]

Every time i've seen a coral turn brown it's been from too much light or a high temperature event (like 85+).

 

I have a chiller on my system which keeps the temperature at 81 degrees.