FOWLR what duration of light?

[TomToro]

So I have the ajm x3 120w LED's over my 135g 6' tank. I'm making it a fish only tank. Won't have any corals in there because I plan on keeping butterflies and an angel.

Q:How long do I need to keep the lights on during the day for them to be healthy? With my coral tank, I kept the main lights on 8, blues on 10, actinics on 12.

Thanks for any input,
Tom

 

[Eggs]

I had a 180g fowlr with PC lighting on for 10 hours/day and all was fine.

 

[TomToro]

Thanks Eggs.