I just pick up some baby dats to grow. I don't want to spend too much on a new tank. The tank will go on the bottom of my 40b stand. Here are the choices from my LFS. 20R, 20S,29R all sounded good.
Tank
Size
Dimensions
LxWxH (in)
10 S 24x8x12
15 R 24x13x12
15 S 30x10x12
20 R24x13x16
20 S 30x10x14
29 R 30x12x18
Tank
Size
Dimensions
LxWxH (in)
10 S 24x8x12
15 R 24x13x12
15 S 30x10x12
20 R24x13x16
20 S 30x10x14
29 R 30x12x18