Posted: Tue Sep 08, 2015 11:53 pm Re: Spontaneously acquiring two large turtles
Good for you for rescuing them from a horrible situation!
I assume you mean 20 gallon not 20 liter. Even that's not really big enough for one of those turtles, but is definitely an improvement.
An above tank basking area is the way to maximize water space. But, really you need something much bigger. You might want to look at stock tanks, Rubbermaid containers designed for watering cows or other stock but often used by turtle keepers as economical alternatives to glass aquariums.
Tobi a RES born in 2012
1 dog, 1 teenager, 3 aquariums filled with fish, snails, shrimp and a bit of algae