Bestva 1800w (cheap-o from China) w Mars Hydro 48''x48''x78' tent. I also have a Mars 700w light, although I don't have a tent for it. Right now I'm running 9 plants (veg, approx 1 ft tall) in the tent w the Bestva. 7 gal smart pots w ocean forest + 20% +/- perlite. Suggestions? Thanks!