I have two babies, they're approx 2 mos old. I set them up in a nice habitat with small size gravel that sloped up to a flat area for basking. They'd been good baskers until I replaced all the small gravel with larger smooth stones that are about the same size as their shells. I was afraid they would swallow the gravel.
They will not bask now. They'll climb up to the basking area with ease, to get food from my fingers, (they eat just as well as ever) but then they scurry back into the water.
How small is too small when it comes to gravel. Should I go back to smaller stones?

