Ok. Yeah, I just to measure my 10g tank and figured that out. So, I am going to retract my guess about apistso working. I would not recommend them for that set-up. I guess the numbers seemed bigger until I was actually looking at my 10g tank. Sorry about that. Also, I definitly say no to kribs.
It does similar to stocking a 10g. The tiny corys you were thinking about before would still be good, just not as many. Do you still like the idea of small bottom feeders, or do you want something different? Shellies? Small gourami? killifish? Embers or some other nano schooler?