robert82

I have mainly leather and pipe corals. The size of tank is this 48″ x 18″ x 24″ Also, I purchased these bulbs https://www.mrosupply.com/lighting/ballasts/fluorescent-ballasts/1854152_flft5eh54w850_fulham-lighting/ They are bright now, but I assume that it is too bright now.

Hi there, I can not find the optimal light bulbs for the corals. I grow them in 90 gal aquarium. I have both soft and hard corals. I took 4 fluorescent bulbs (12 w) each but the light was not bright. How many bulbs do i need and how to select the proper brightness? Please explain me, because I am a newbie.