SPS bleaching?!?!

[trd]

What causes this, too much or too little light?

I have a 40 breeder and I recently went from ati 6 bulb powermodules to 2 ai led. The ai are about a foot above my tank and is set at 14% all across the colors.

So does bleaching mean too much or too little light?

 

[dougers31]

IMO, bleaching can happen with too much light, browning with to little. Sometimes you can use a few layers of eggcrate on top the tank for acclimation puposes, remove one each week untill you have full lighting.

 

[trd]

**** looks like i underestimated these led lights. I thought 14% for the w,b and rb was little

 

[aj1980]

Too much light. had T5 before and switched to LED and it bleached my zoas and SPS.

 

[florida reef]

Too much light can definitely cause bleaching. My sps were bleaching so I cut back my lighting schedule and they are coloring up again.

 

[MimicOcto8]

did you acclimate you tank and corals to the powermodule? or did you just flip the switch on the bad boy?

 

[Michael7979]

Just saying that maybe your alk or some other parameter might be off.
That can cause bleaching too from what I understand.

Someone correct me if I'm wrong.

 

[dougers31]

Just saying that maybe your alk or some other parameter might be off.
That can cause bleaching too from what I understand.

Someone correct me if I'm wrong.

Yep, something one may not think about since the lighting seems obvious... good call.

 

[Alattner]

the only two ways i have ever heard of sps being bleached is by lighting or parameters being off

 

[dougers31]

Temperature could be another factor, I lost 3-4 nice frags when my therm. was off by 4 degrees or more.

 

[Alattner]

very true one of the basic things of corals but easily overlooked. not just temperature in general but i think a big temp change could also do it. am i right?