How Stocked Am I Now?

5 You're overstocked by about ten gallons. The gl cat fish get about 5 inches a piece. So the glowlights are ten gallons your female betta is 2 your platties are 4 your upside downs are 8 your otos are 4 and your corries are 6 so total you really need a 40 gallon tank. I think if you gave up a few of your glow lights or the two gl cats you would be in better shape. Not that what you have can't be done. Read up on your species a bit. All in all you have an interesting tank. Just find out how tolerant each is to a little overstocking/ waste build up. You could do more frequent water changes.