Will I bleach my corals by...

[BJJ]

Upgrading from 2 150HQI to 3 250 HQI?

 

[boxfishpooalot]

Cant say 100% but bleaching(the coral turns white) is known to be caused by uv and ir radiation. If those halides come with glass uv shields then I dont think it will happen. If they are unsheilded they may bleach due to the corals surface temperature being warmer than the water itself.

 

[McCrary]

If you have doubts about the corals being injured by the new lighting intensity place a few layers of screen over the top of your tank and remove one of them every 5 days or so. This will give the corals a chance to adjust to the new lighting intensity.

 

[BJJ]

<a href=showthread.php?s=&postid=8089924#post8089924 target=_blank>Originally posted</a> by boxfishpooalot
Cant say 100% but bleaching(the coral turns white) is known to be caused by uv and ir radiation. If those halides come with glass uv shields then I dont think it will happen. If they are unsheilded they may bleach due to the corals surface temperature being warmer than the water itself.

Interesting, never thought about that. I was kind of thinking that I should be ok - its not like im putting them under 400W lights in a shallow tank.