With a 2x3 space your have a total of 6 square ft, divide your square ft by the watts used and you have your watts per square ft or wpsf. Your working with 25wpsf right now, with is ok, if you can add one more 150w fluro you can but that to 50wpsf, which is good, if you can swing 2 more, you'll be at 75wpsf which is killer, and since you have the benifit of fluorecents, you can keep the lights as close to the plants as possible. I'm assuming your growing in a closet, make sure you line the walls with anything reflective you can find, tinfoil works really well, that'll make sure you dont lose any lumens into the paint, which hardly reflects any light. That should cover your room, lets touch on nutes, or the lack there of. using a urine water combo is ok, BARLEY, your only providing your plant with nitrogen, there are many more key nutes and macro nutes that the plant needs to flourish. However i know money is an issue, we've all been there... I would have said wait until your completely set-up before you started a grow, but since its a little late for that, start with lighting, get two more fluros, THEN look at nutes, the plant can only take as much nutrients up as there is light available...