if you have craigslist check it out for fish stuff.
I have seen complete 55 gallon set ups go for $125 with a stand.
I picked up a 20 with hood,light,heater,filter and she threw in a sponge filter..for $30
I also picked up a 75 with custom stand,hood, wet/dry, skimmer, fake plants,rocks heaters..etc..etc..etc for $400.
the only thing i had to add was the gravel,water etc
I have discus and angels in this tank.
If you haven't already gotten that set up..decide what you think you would like and base the size of the tank on that.
otherwise start with a 20 -30 a half dozen danios if you want to do a fishy cycle
I have seen complete 55 gallon set ups go for $125 with a stand.
I picked up a 20 with hood,light,heater,filter and she threw in a sponge filter..for $30
I also picked up a 75 with custom stand,hood, wet/dry, skimmer, fake plants,rocks heaters..etc..etc..etc for $400.
the only thing i had to add was the gravel,water etc
I have discus and angels in this tank.
If you haven't already gotten that set up..decide what you think you would like and base the size of the tank on that.
otherwise start with a 20 -30 a half dozen danios if you want to do a fishy cycle