Before I go out and purchase a turtle on a whim, I've tried to do some research, but I find myself more confused about the necessities. So far I know that I need a tank that is large enough for a swimming area, a basking area, a water heater and a filter. I was assured by the lovely sales associate at the pet store that 55g will suit my needs. She also encouraged me to buy small decorative pebble, and that he/she can chow down on gold fish as a part of his/her regular diet. I've come to learn these aren't brilliant ideas so I'm questioning her authority on the subject. So I've given myself a month of prep time and I would be especially appreciative if someone could provide me with a basic list of what I'll need to provide a happy home for my new buddy. Any advice or tricks of the trade would be amazing as well! Thanks in advance