If you notice that your corals are showing signs of bleaching, you need to make drastic changes to eliminate that problem!
Bleaching is cause by a coral(s) receiving too much light for the zooxanthellae to keep up with. Too much light causes oxygen toxicity from oversaturation of coral tissue with photosynthesis. Zooxanthellae produce more o2 than can be consumed, that is bleaching>A carbon addition and extreme filtration/skimming, new light, prolonged intensity, sudden placement in corals into new places without addequate acclimation will also affect this.
An iodine supplement will help to heal the corals and stop the bleaching if caught soon enough.
Another neat point to make is that many times our tank water has a yellowish tint to it. That is called GELBSTOFF which is plankton and algae that once decomposed, releases a yellow substance which effects the intensity and quality of the light reaching your corals. Refractory compounds aslo play the part of decreasing the amount of light hitting your corals, due to compound like organic acids which these can be removed with carbon and efficient skimming!
Think about upwelling light as well for the health of your corals. That is light that bounces off the light substrate or rock to give the undersides of your coral beneficial light. _________ 125gal.w/Mag9.5 return(dual megaflow)>Mag7 pump Aqua Cev180skimmer.Wave2k Hamilton Reefstar(2)250watthqi(mh)pend.a Yellow, Naso Tang Red Lip Blenny Percula Clown Demoiselles Niger Trigger F. Wrasses Cerianthid Stars Hermits snails Zoos shrooms Montipora Brains Gorgonians Favia Turbinaria Kenyon Tree Acropora Xenia Tridacna (CroceaMaximaSquamosa)
"IF THE PHONE DOESN'T RING...IT'S ME"  jb
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aka parrothead
Last edited by coral reefer; 01-19-2007 at 01:27 PM.
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