How big can I go while keeping the same light?

[OCDP]

Originally Posted by mr_alberta

Do a 24x24x20 cube-ish tank for now and use less rock. That'll give the angel more swimming room for the time being.

I like this idea... obviously because a cube is what I want... and have wanted one for a while now. If I did just a big island in the middle and left the sides alone it would have fairly good swimming space.. and if I were to make caves and other various hiding spots, etc... what do you guys think?

I realize I've walked into this a little unprepared, tonight I will take measurements of what kind of space I have to work with, although I know it wont be too much... again, why a cube would be better for me.

Sorry.. haha guess it's logic to find out what kind of space I have to work with haha