How many hours do you leave the lights on on your reef tank?

[Kool-cat]

I just want to know because I leave my lights on for like 11 hours a day and i got a lot of algae.

[Reefer_Buddha]

i run my pcs for 11-12 hours a day and my halide i run for 8. Yesterday (seems like the beginning of summer) it was real hot so i shut off my halides. Probably gona run a 6 hour halide photoperiod now since the seasons changed.

 

If youre concerned about algae then lower your photoperiod. Also check your nitrates and cut back on feeding as much. Algae needs 2 things, light and food. If your fish/cleaner crew isnt eating it all then youre prime for nuisance algae. Also depends on how long your tank has been up.

[Hwarang]

11on/13off.

[tinyreef]

12-hours on/off

[USFnano]

I have my actinic on for 12hrs, the halide on for 10.

[yOyOYoo]

I run my lights for 12 hours a day on my nanocube

 

2pm-2am

[bobioden]

Actinic on for 10 hours, Noon-10p, and Halides on 8 hours 1p-9p.

Fuge lights 6a-10p.

 

Bob

[djconn]

Actinics on 12 hrs/Daylight on 10.