TTRAY14
Aquarium Advice Newbie
I would think you would need 6 or 7. Not sure about the wattage I'd say at least 30's maybe 50's the 30's are 7 1/2 in. long so 7 would give you a 53 inch spread with a 4 in. space between lights. Mine are 10,000k and 12,000k.
So, do you think 4 blue (427 nm) 30w and 3 white (6500k) 50w would work? What does everyone think?