Nice enclosure, is he/she an albino?Can you do something like this on your patio? 1 for each turtle...
I used a cement mixing tub 2ft x 3ft as a temporary pond for a turtle. See how it's full of water but the rocks stack up allowing the turtle to get out of the water? I kept a hardware cloth lid of top of this tub but removed it for the photos.
View attachment 159499
View attachment 159500
See how the turtle can get all the way out of the water?
View attachment 159501
View attachment 159502
I kept this in partial shade and partial sun...full sun could cook the little guy but they need access to it at times so they can sun themselves and warm up
Here is another turtle, kept inside an aquarium but still has the rock to climb out on (log, driftwood would work too)
View attachment 159503
Hope this helps you get started on a better set up for your turtles!