I've run as few as 4 and as many as 192.
rhizome Reviewed by rhizome on . Poll: How many plants do you put under a 1000 watter? I have done too many my first two cycles, but things always turned out pretty well. This time however, I've purchased two 4X4 tables, and I'm having trouble figuring out how many I want to do. I have friends recommending I take it down to as long as nine per tray which I find to be pretty damn small. I was thinking more along the lines of 12-14 per tray. I suppose you could pack 16 in there if you really wanted things to be tight, as most plants take up a square foot per. I am using 3 gallon Rating: 5