Help with lighting please

[Bryan_pcpm]

I have a 20 gallon tank with sand and 2 rocks. I've had the tank for about 2 weeks now. I was running one 1 marineland bio wheel 150. I just added a second one just like it. I have 2 filters running now. I also got a Zoomed aquasun led ho 24". How am I suppose to run the light schedule?

 

[Reefing Madness]

Anywhere from 8-12 hours, it up to you. I use LEDs and run mine 8 hours.