175W enough for SPS?

[BlueAbyss]

Originally Posted by JDigital

Are you sure its a 20G tall?? I thought a 20G regular was 24x12x16...

Anyways, I had a 175W MH over my 20G (regular) and I had great Monti growth, as well as good growth on digitata, birdsnest... never kept the tank long enough for acroporas...

I doubt you will fit 8 bulbs over a 20G... 8 bulbs generally spreads to 24x24.. You'd be hard pressed to fit a 6 bulb unit over it..

Yup you're right, each reflector for a T5 is about 2.5 inches wide, but I can totally fit a MH and 2 T5s over my tank. This would also work if I get that 30 gallon Though one end would be slightly darker.

On a side note, you're more than likely right about the way I labelled this tank... it probably is just a normal 20G, but most of the other 20s I've seen in the past (not many) were longer and only 12" deep.