Occupant for 10 gal planted.

I have a 10 gallon planted tank that looks great, thanks to most of the 
people on this list.  It occupies 7 Cardinals, and 3 Oto catfish.  The filtration is a small whisper PF.
Should I stop there since I do want a low stocking level, or should I add a few more
cardinals?  a RAM?  

I should probably stop, just want some opinions.


Tyson Lee
tyson at phoenix_net