I hate to always be the one to stirr things up, especially since I haven't been posting for about 6 months, but Kevin....I think your tank is pretty okay as far as too many fish ONLY......and I mean ONLY if you have adequate filteration and oxygen and you do your monthly water changes. But, 7 cories and 3 guppies doesn't sound too much to me. As long as the guppies aren't always having babies, which they probably are
Lithril, in your 10 gallon you have:
2 furcata's
5 albonubes
3 corys
1 dolichopterus
and that's not any leass than Kevin!???
Anyhow,
I just thought I'd mention that I'm having my first bout with disease in my 55 gallon, fungus.....
I was adviced to get Jungle brand fungus treatment and it says on the box that it treats swim bladder problems too. Petco has it on sale right now. It's only been in my tank now for 2 hours and the fungus is already dissappearing off of the fish, YAY!!!!
Best of luck to you.