I am looking for a 5g tank or bigger that someone doesn't want anymore. I don't want to go any bigger than a 10g and no smaller than a 3g. I don't want to pay too much as the tank is used but I am willing to a new filtration system if the tank needs it. I would go to the store but it costs more and I know for a fact that 99.9% of you betta mothers/fathers have tanks with everything except for probably a good filter system or something. I am can buy replacement part if something is broken like the heater or filter system etc.