i have a 20 gallon goldfish tank, a 5 gallon tropical with only one dwarf gourami in it, and a 2.5 with a crowntail betta. all tanks are planted.
read read read about proper fishkeeping on the internet.
goldfish, bettas, gouramis, guppies, fresh-water serpent (asia)
anubias, telantheras, wonderbulbs, marimo moss balls
The pet trade gets a bad rap for exploiting wild animals but sometimes the opposite is true.
Modern advances in technology affect every industry - even the aquarium hobby.
If you are looking for a unique invertebrate to add to your saltwater tank, consider the sea urchin.