danny240
Active member
I have a 240 gallon aquarium in my wall with 4 96 watt compacts, 400 watt metal halide 10k and a 250 mh 20k and another 250 on its way. My tank is 8'x2'x2' how far should I keep my lights hanging from the top of the tank. Also how long should I keep them on I am triying to use my compact for early morning and evening lighting.