jcardona1;2698460; said:are you sure it measures 6x2x2? thats what you said in post #3. if these dimensions are correct, there is NO WAY thats an 80g tank
jcardona1;2703043; said:ok so yeah thats roughly 85g. when you say 21" deep, is that the height? so the tank is 72x13x21 (LxWxH), right?
if you want T5HO, i would run two 3ft, dual bulb fixtures, but only turn on one bank of lights in fixture. 3ft bulbs are 39w each, so two bulbs on at a time would give you 78w of T5HO lighting, approx 1wpg.
and if you decide to run co2 in the future, you have the extra bank of lights you could turn on and give you about 2wpg