I have a red sea max that I upgraded to rapidled's a few months ago. After struggling to get everything working it has been great for the last 3 months or so. The corals seem to be enjoying the new lights and are growing for the most part. There are a few corals that seem to almost be getting bleached though. I acclimated all the corals with low intensity and slowing moving it up. Any thoughts on what could be causing this?
Corals turnign white?
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blackthunda77
New member
Which corals are bleaching? SPS, LPS, softies, zoas?
The Montipora is, two different ones. One looks like it is fading. The zoas are great, softies are good too. Anemone is fine. Seems like just the Monis but I also have a birdnest that looks a little light. I want to get more SPS but wanted to see if I had a problem before I do.
Reefers4U
Active member
+1 - we need some more info - corals bleach for lots of reasons, not just light, could be temp or acidity. They expel the Xanthelle that provides them with food - this is the simple explanation - since the Xanthelle lend to their coral hosts both food AND color, their expulsion leaves the coral slightly brownish or white.
Luckily for you, the expulsion is a necessary condition for the sufficient condition of stress... so you know they are being stressed. But now you have to find out why... pictures would help along with your params.
Also, be sure not to confuse a bleaching event with tissue necrosis, but I'm sure you knew this already. Hence the need for pics.
HTH
