i grew with t5 and t8 tubes when i started of and it will be real difficult to get 2/3 poundfs from florecent tubes youy would need loads of tubes i had 8x58 watt and the max i could grow well under them was8 plants so you would be better of with 2000 watt or 125 watt cfl if tyou are wanna go flurecent but hps will get you to that yeild a lot quicker than fluresent .be safe the postman.