Bleaching and lighting

[lt34]

I thought I didn't have enough lighting when I had my 300watts of PC with 170 being 10,000k and 130 of Atinic. So I went out and got 2-150watt 10,000k MH and 260 watt PC Attinic for 560 watts. I didn't want my BTA to bleach, but now one lfs says that too much light can cause it to bleach. Is this to much for a 90 gallon? The tentacles are somewhat white but not transparent and the foot/stem is a light tan. It eats silversides well about twice per week. Where it decided to go in the rocks, it is hard to feed not alone get a picture. I put DT in my tank about 3 times per week.
Thanks in advance.
s.g.-1.026 / Ammonia, Nitrite, Nitrates-0 / alk- 9.8dkh, Ca-410
temp 79F

 

[lt34]

Anybody know if this is to much lighting for a 90? It equals 6.22watts/per gallon.

 

[matttaylor]

I'd say no, it's not too much. I'm running 2 X 250 watt mh's and 2 X 40 watt florescents which equals 580 watts on a 55 gallon tank or just over 10.5 watts per gallon, and my BTA looks great But you may have to move the BTA if things don't work out quite as planned. Or if it doesn't move itself.

 

[lt34]

Thanks, it is staying for the last month against the overflow and behind some rocks. It still gets good light and also flow from my Seio 1100. I don't know how I would move it as I don't want to damage it foot. If I move the Seio to the front of the tank, do you think he might move for the better flow? Thanks again