I would go 3 gal pots one plant each and thats a pretty ho hood but in my opinion you will def need to supplemnt with side lighting with cfl... I have 3 plants under a 4ft 6 bulb and if your girls get bushy to get your yield up side lighting will be crucial.... and you will probably need to lst to keep the canopy even and that hood down close.... t5 loses penetration pretty quick especially anything over 12in... I try to keep mine 2 in above tallest piint... good luck with your grow