Screen is 6X6 lit on both sides with ip65 20 watt grow leds. Flowed by rio 1100 pump rated at 395gph. I guess I'll start out with the 18 hours on 6 off. Ruffed up the screen pretty good so maybe this thing will take off and keep me from having to buy that high filler media. And eventually I'd like to get brave enough to remove the skimmer lol. Let me know what ya think tips trick suggestions critiques are all welcome.