If you also want to make a little money, the best way i think is to start off with wcmm (White Cloud Mountain Minnows) and lots of Ambulia, Cabomba plants.
you can sell any extra fish you get back to the fish shops for at least $1 each. and you won't need a heater and they look good too when you have a lot in your tank.
Start off with 10 wcmm and in about a month you should have a lot more.