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Thank you for the response. I do not have atinics, just a MH with lunar lights. Are the atinics a needed light for som corals or are they for visual only? ;D
actinics provide the blue spectrum that enhances the way the fish look, and gives it more "pop"
If I'm not mistaken, they also do povide usuable spectrums that fish and corals need.
I used to have MH's on for about 10 hours, and I gradually reduced it to the current 5 1/2 hours. The actinics I kept at 10 hours. I'm thinking of adding one VHO full spectrum to see what that does, but I'm too lazy to modify the hood again.