Originally Posted by switch26
I see the Aquatic Life 36'' T5HO fixture, but I have 2 bulbs instead of 4..
2, 39w bulbs, one 6000k and the other is a 650nm roseate, im thinking of replacing with 2 6500k bulbs for better plant growth..
Anyway, can anyone tell me what my readings would be for that fixture currently? I have a 30 gallon tank and my fixture is about 16 inches from my soil?
You should get about 70-75 micromols of PAR with that light, which I consider to be high light.