If you have flake fish food you can add a little pinch into the water every couple days to keep the BB fed. And keep the filter running.
What kind of fish catch your eye at the lfs
A nano fish tank would be nice, or a Neocaridina shrimp (like Cherries) tank.
6-8 Boraras Brigittae, aka Chilis, 6 Dwarf Cories, a pair of (or just one) Peacock Gudgeons. Mosses, DW, stones and an assortment of Anubias, like Nana and Nana Petite.