75 gallon or 90 gallon

[daniella3d]

really? what type of SPS?

I would not put any SPS at the bottom in mine and I have a Pheonix 14k in 23" deep.

I put them there at the begining for acclimatation but to get them in good color they need more light or they will brown out of be dull.

So I am wondering what type of SPS you grow "colorfully" at the bottom of a 27" deep tank running low par 20k 250 watt light?

Originally Posted by lastlight

There's no denying you'll get more light to the bottom with 400 vs 250 w but that depends on a few things (some 250w bulbs destroy some 400 in terms of PAR). I'm running 20k 250w bulbs (much less PAR than your average 10 -14k) in a 27" deep tank and have sps growing (colorfully) on the bottom.

Brad's point is still true tho. I'd go with the 75 as well. It's a nicely proportioned tank. Before I went any taller in that tank size class I'd definitely go longer or wider.

[lastlight]

Originally Posted by daniella3d

really? what type of SPS?

Since this is relevant to choosing between the tanks... here is one of several. Tank's 36" wide to boot with halides only down the center:

[ColinD]

My next tank will be a 75(+/-) 36X24wX20h. For me its more about footprint and depth.

Colin