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i was saying 2 400w mh and hps

14x9 but i can easily make it smaller if i need to

so I am thinking i need 2 of these i wan tot try to grow 30 plants at a time. would two 400w ballasts be enough?

So i just finished a grow with all cfls and it was successful. Now I want to use metal halide for veg and hps for flowering. Where can I get a ballast that will work for both bulbs? :leaf:Thanks for the help guys!!:leaf:

So I have a simply and possibly dumb question. I am about to invest in some ballast for metal halide bulbs. Will HPS bulbs just fit right in or no?

Ok so my buddies have already baught 10 of the 150w cfls so i mean for this grow I think i am stuck with the cfls. Any advice? I also need help on a soild mix and nutrients.

So I have a room that I can do whatever with and my buddies and I are making it a grow room. I already have 2 fans blowing air out of the room in the ceiling. We were thinking of trying 150w CFL lights this time around. But I need some help on soil and nutrients and such. Any help will be...