Take your time, research, read, think about it, reconsider, research some more, then go to the store.
green terror, oscar, jack dempsey, frontosa, convict, skat, var. puffers, mono, white tip shark, var. pleco, labs, neon tetra, cardinal tetra, discus, betta splendin, serpae tetra, mollies, pictus cat, otocinclus, blood fin tetra, cory cat, and anything else I forgot to mention.
To many to mention, all plant tanks running DIY Co2 systems.
fish don't need toys, get that crap outta the tank!
A nano tank is more than just a small fish tank -- it is a compact, self-contained ecosystem.
Also known as oto cats, otocinclus catfish are some of the smallest aquarium fish out there and also some of the best algae eaters.
If you've ever seen those fluorescent fish at your local pet store and wondered what they are, you'll learn everything you want to know in this article.