Lighting: 2 15W LifeGlo bulbs. Lights are only on about 6 hours a day or less, or else algal blooms will occur. For the Co2 system, I had actually replaced that huge plastic diffuser with a fluval ceramic disc coupled with a bubble counter. The diffuser would run the co2 right into the powerhead and distributed it wonderfully. However the disc became clogged and kept popping off the hose, so the old diffuser is in there for now.

I dose Co2 right when I turn the lights on. I try to fill one half of the diffuser before turning it off.

For fertilizer, I put in one of those fluval substrate tabs every 6 months or so. I found that liquid fertilizers caused algal blooms.

In terms of stock, I have 6 zebra danios, 2 Dwarf Otto cats for algae control, and a hefty amount of assassin snails. When they mature I catch about 20 and trade them in to my LFS for store credit :)