Woah my tank is 10x4x3 and is 900 gallons weird lol
we are going by Length x Width x Height right?
I think something is missing...
I doubled checked just to make sure. I think you may have a larger tank then you thought lol
http://www.greertank.com/tankcalc.htm <---- double check it
and to be honest your tank looks even larger then mine...
You are correct. But it's Length x Width x Height x 7.5.
His fish are probably 30" and he is telling us 24". He is so humble.