well i read everyone else and i never put my plants under 24 hours of light they need a lil bit of darkness to photosinthasize my plants r under 7 500k 27w bulbs and look great. mine r only about 5 weeks but they r massive but my closet gets really hot with all the light. but a good temp to stay around is 85. here is somthing for everyone this is a guide to stop plant abuse check it out its pretty helpfull in directing u in care for ur plants.Your top leafs are curled cuz of ph problem, looks too high to me, and under 80 degrees for sure, I like 18/6 for my veg. and it will help the heat problem, you have a fan in there? What nuts are you using?
I've thought of Hydro before, but since this is only my second grow..I thought I would stick to the basics.There looking good, you ever think of Hydro? Or are you a dirt only kind of guy?
I would do that but I would be worried about the heat put out with the HPS lights. Do CFLs or HPS light put out more heat?imagine if you had 4 75w hps lights man. they throw out way more lumens per watt. i mean you could have 5 and be using less wattage than what you got now and be at least doubling (id hafto look it up to be sure) your lumens. cfls get 60-80 lumens per watt, while hps can put out 110 per w.
your putting out 27000 with cfls and you could be doin 44000 with the same amout of power... do some reasearch and think of what you could do
keep on growin and good luck
Thats why I'm sticking with CFLs for the time being...Its close to 80F as it is now..with the door to the closet wide open. I, as well as everyone else, know I can't leave that open during flowering. I'll have to shut it, and that will prob. force the temps to get around 84-86F.hps puts out more heat for sure.
I've been keeping the door open during the day to keep the room cool, but once flowering starts I'm not sure what I'll do? The smell will be outrageous..esp. if I don't get a carbon filter. I'm planning on buying one in the next few weeks though..i hear that man. but judging by the size og your room you should be able to replace say 3 of your cfls for 1 75w hps. (i want to do it to my little set up but im too broke) i know someone with a 75 w hps and 2 65w cfls in a small 3x3x3 enclosure and as long as you have fresh air exchange you should be alright. but if you cant let any of that stanky heat out i dont know what you could do.(maybe charcoal filters?)
if its in your budget i say hook it up and your inner pothead with figure some way to keep it cool in there ....good luck