Originally Posted by chilwil84
i have 8 t5 on my 90 and they work great i even had to move all of my mushrooms into caves because it was so bright even on the bottom
LOL, you realize you coulda saved a boat load going with VHO, with half the lights.... And damn near twice the light output. VHO has better PAR ratings than T-5 does. You have 8 T-5, and I have only 4 140Watt VHO, and have 2 BTA in my tank, one of which has split. You gotta look at the PAR ratings of these bulbs also guys. But 8 lamps, you have got to be kidding me.