No it has a main reseevooir of 65 gallons that goes thru 18 separate 5 gal (or 3) buckets.
Ahh now it makes sense. Well you might not have room for 18 5 gallon buckets and 18 plants under 1200 watts will get smaller plants so you should be able to use the 3 gallon ones but the rootball will fill those 3 gallon buckets stuffed. maybe just use the 5 gallon ones and less plants say like 12, you should have plenty of room then and your plants will do a lot better as well. Good luck with your decision.
Think I could pull off a qp per plant with 12? Using heavyer yeilding strains
Two pounds is more realistic for twelve plants under 1200 watts. I will be doing my first dwc grow here in a couple of days so as it is I get about 3 zips a plant under 600 watts in dirt so i'm guessing i'm seeing only half my plants potential with hydro I should see at least 4 to 5 zips a plant. In your case expect about the same. I average 3 zips a plant under 600 watts in dirt, the plants Kush.