Yes I thought about that but the "soil" here is rocks after 2 inches of digging coral/lime rock .

It would be great if possible but an island (plastic bin with soil/sand) in the middle of the trough will have to do. It will have plenty of room.
We will bury one third of it .

I am not sure about the rest of Florida enforcing that law but here by Miami you can buy quarter size sliders sold at the beach by parking area make shift seller stands and soft shells also around June to Sept. Imagine wc babies .

Most will wind up dead in those little plastic turtle islands .