I was hoping to make a nice indoor pond for my stingrays. At the moment I have 2 retics in a 135 gallon tank. But I want to be able to keep motoros and other kinds. So I went to a lfs and they said a 180 gallong fish tank would cost me $999. So I decided that I wasnt going to spend a thousand dollars on a tank and that I could probably make a nice indoor pond for half that price. I would like to make it big enought to hold up to 13-15 rays. So how should I go making this pond and how big will it have to be? But It cant be a soft tub or something like that.
