it will be a grow out and frag tank, i grow out frags in it for my main tank and i will also have grow out frags that i will be selling and trading.

currently i am leaning towards t5's because like you said chris it keeps things steady between my main and the frag tank, the light acclimation going from other tanks to the LED tank might be what is harsh on the coral and i think that is why some do better in the t5 main tank.

i guess another question is if i did go t5, would a 2 bulb fixture be enough for a 24 x 12 x 6-7" tank if i hang the light high enough over the tank (probably 10" away from the water level)