I finally got out the tripod and took some pictures of our tanks:
Here's the 'free' 20g that got us into fish in the first place (first imagine it with blue gravel, big red lava rocks, and plastic plants):

Here you can see a few Kuhlis, a Skunk Cory, and an Oto if you look closely:

What I love about this tank is how non-aggressive each group of fish is. The motionless hatchets are a perfect contrast to our hyperactive kuhlis:

And here's the 55g, home to the Sids, Danios, and SAEs. We've got some Cardinal Tetras and Otos waiting in quarantine:

No closeups of that one - I can never find the Sids.