"If you earned the money i.e. job, house work.. it really is up to you what you do with that money.. also maybe try having them get you the tank for xmas.. or early bday present?? thats what I usually do when I want something but dont wanna pay.. lol down side is that if holiday or bday is far away you just wont get anything on the date.. but upside you still got something." . . . .