How long should i keep my lights on?

[PolandSpring]

hey guys,, i have a 90 gal with tek t5 6 bulb and i was just wondering how long i should keep my lights on for?

thnks

 

[darkdrako]

I run my actinics for 10 hours and my whites for 8 hours and have good growth on my corals.

 

[SaltWaterN00b]

I always kept my T-5's on for about 10-11 hours a day (both whites and atinics) never had any issues and the corals did great! This was on a 55g.