Hi everybody long time reader first time poster here. The tank I currently have is 4' x 2' x 1.5'. What does this convert into in gallons? In there at the moment I have 2 very healthy and happy looking red oscars (6" and 4.5"). I bought them from a shop that had about 20 oscars in a smaller tank and these two seemed to keep well clear of the rest and were always swimming around each other and looking cuddly so thats how i chose them. Also in the tank I have one 5" lepoard pleco and 2 giant freshwater snails. Is this enough for this sized tank or could I punt in another fish or 2? I'll post pics soon as I find my usb cable!