ok, well it will be soil...i dont think i would waste my time building a hydro set up for one plant now...c'mon..im going to use light ferts if any. 15-10-10 sparingly. and obviously you cant use sog with just one plant. im not a retard. my question was what kind of yeild would i expect from a 250 watt hps on this single plant. or if i would be better off growing, say 6 clones instead under the 250 watt bulb. and the plant strain is northern lights. i apologize for my vagueness. can anyone please help me out. i would aprreciate it