This is/was my 10gal (I'm having to break it down b/c of a leak). It's been one of my favorite tanks over the past year or so I've had it going:
Light- 18w T8 on for 8hrs/day
Filter- Rena XP1
Substrate- Onyx Sand mixed with a little black T grade Colorquartz
Assorted crypts (Wendtii, Undulata, 'Mi Oya', Ciliata, +??)
Red cherry shrimp
10x Boraras brigittae (Chili rasboras)
This tank has been just about no maintenance at all. Feed the fish and shrimp daily, water change about 1x a month, clean the filter every few months, and thin out the plants every now and again. Was the perfect little work tank and I'm quite going to miss it!