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how long to leave on mh lighting

Brian

Officer Emeritus
Officer Emeritus
I think it really is a preference thing. It also depends on what type of corals you are keeping and if you have a lot of light or not.

This is what I do:

Atinics On @ 2:00 pm
Halides On @ 3:00 pm
Halides Off @ 11:00 pm
Atinics Off @ 12:00 am
 
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
 
C

concept3

Guest
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.
 
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