Nice setup along with a great example why snappers should have a place to haul out. Some just like to bask more than others. I've seen them bask in shallow water with their shells exposed when I go fishing from time to time.
Mine wont bask. I have one living in a window well(huge, but jumps right back in as soon as I take it out, will meed to take it far away) and it is covering itself it mud. But yeah necer seen them bask ever. Cool pic
The little common snapper that I used to have never wanted to come out of the water for any reason; in fact, it got pretty mad when I tried to coax it onto it's basking land area. Just goes to show how variable the behavior can be in these awesome turtles.
My snapper is about 6 inch carpace now in less than a year, got him at the size smaller than a nickle. He NEVER comes out of the water, cool to see though