lights
Posted: Sun Jan 15, 2012 3:32 am
how long can you leave lights on a tank with live rock to avoid algae growth? (20watt light)
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Re: lights
Posted: Sun Jan 15, 2012 3:36 am
I think about 8 hours a day is what most people try to keep to.
Re: lights
Posted: Sun Jan 15, 2012 7:00 am
I run about 12-14 hrs daily, I have some hair algae (actually just on 1 rock), but it hasn't expanded in months.
Re: lights
Posted: Sun Jan 15, 2012 12:11 pm
My lights are on a timer and run for about 9 hours a day. I do have a small patch of hair algae that I allow to grow in the tank because my puffer and bullet goby both graze on it, but if it starts growing anywhere else I just scrape it off.
Re: lights
Posted: Sun Jan 15, 2012 2:42 pm
thanks for the info everyone!!! 
Re: lights
Posted: Sun Jan 15, 2012 6:50 pm
8hrs is good
Re: lights
Posted: Sun Jan 15, 2012 6:54 pm
i also vote 8 hours