t-5 options for 20G

[aaronc]

hello,

i am looking to upgrade my lights from 130w PC (1 65w 10k, 1 65w atinics) to t-5s. i am wondering if the 4 x24w is strong enough for a 20G with the depth at 18 inches? also i am debating between the ATI fixtures and the sunlight supply fixtures, both are 4 x24w. which one would you guys choose?

thanks