i got a 250 hps, how can i keep temp down with only fans? whats the best way to place them and so that i get circulation and coolness in my closet?

now that they are on 12/12 and have an hps do i need to water them differently? right now i water them every 2 or 3 days with shultz 10-15-10 in the water for nutes, it seems to work really good for me

do i NEED to transplant? or can i still get a fair amount of yield in the present 6" pots?

and last, what can i use to get rid of the smell thats relatively cheap?

pics:
1. ballast to new 250 watt hps light

2. fan to cool ballast, there are like 4" fans prob, i have 2 of them, one on each side of ballast

3. set up

4. plants and light

5. plants

any comments?