RunninWideOpen wrote:well, i have an idea.....
55 gallon tanks are pretty easy to come by and fairly cheap in my area. I bought a 55 gallon complete kit for $150 at petsmart. I've heard of people getting them for like $50 off craigslist.com . If you could get 2 55 gallons, that would probably get you through a couple years pretty well. That would be better for the turtles than 1 70 gallon tank.
Two 55 gallon tanks are a great idea initially. As everyone is mentioning though, these turtles get large and as they continue to grow, they will become more aggressive with each other. I know personally how aggressive they can get I had 2 turtles in a 55 gallon tank for a very long time & the fighting got so loud after a while that I had no choice but to give one of the turtles away. I realized it was the best thing for my babies so that they wouldn't be hurt. I have only 1 turtle now, she is 9 inches long, and I just love her to pieces. She lives in a 90-gallon tank and is very very happy.
I wish you the best of luck, but I know in the long run, you will have to make a decision about who to give some of the turtles to. Maybe you can donate one or two to a local school's science teacher? It's good for kids to learn about the animals, especially if you find a Science teacher who understands how to take care of reptiles properly. That way you can drop in from time to time to say hello to your turtle!