I wanted a pond for soo long and now its possible. I was thinking of lmb but wanted something more tropical. So would a dovi be good for a 500 gallon pond? I live in Central GA so would i need a heater or not? What things should i put in the pond, rocks ect...? And how many dovis would be good for a 500gal pond? oo and where would i purchase a dovi? Thank You