Most understocked tank?

I have a 90g

with one betta and 4 clown loaches and a 65g with one blood parrot.

Low maintenance is the key for me since I'm away from home quite frequently.
 
I have a ten gallon with a couple rams horn snails.
 
Neither of my tanks are very stocked. 10g with 3 DP's, and a 25g with 1 3" GSP. However, there is a tagalong in the 25g, a feeder platy type fish that came in the bag with some ghost shrimp. And now she's had babies!
 
20g with 1 Otto...? Well, it does have cherry shrimp too so I guess that ruins it! :( ;)
 
AquariaCentral.com