I've just set up a new 5.5 gallon aquarium on my desk at work. I have a desk lamp with incandescent 60 watt bulb. Bulb will be replaced with a screw-in CF bulb soon. Also have a Penn-Plax Small World filter. I cut the ends of the cartridge off, emptied it, and filled it with a cut up AquaClear sponge. So in effect, I now have a small air-driven sponge filter. Also a small aquarium heater that was previously used on a 10 gallon aquarium. Substrate is plain gravel, temp target is 78F, and Ph target is neutral. The water comes out of the faucet a bit harder than that, but I've mixed it with bottled water to get it down a wee bit.
Plants so far: Java Fern, Java Fern Windelov, Wisteria, 1 small Wendtii Crypt. All taken from my main 55 gallon tank.
Inhabitants so far: So far: two Malaysian Trumpet Snails. Soon, I hope to add a ghost shrimp or two, and then in a few weeks, after vacation, I plan to add a couple of small tetras, barbs, or other small fish. I'm trying to resist the temptation to go out and buy fish right now, because I'll be on vacation for a couple of week of the holidays, and I want to be here daily to sort possible problems when I do add fish. I'm also still making final decisions about just what fish to add. Tetras? A couple of Cherry barbs from my home tank? Not sure yet.
Also still tweaking the plants/layout, etc.