Thanks for all the advice. I will change his plants during his feeding time. He likes to hide on the one plant in the back of the mountain, which is where he is now. I changed out some of the other plants so far.You're talking about the one in the back, left of center? I think it's fine, especially if he likes to hide there already. You can bring it forward a couple inches if there's any concern about him getting caught between the mountain/cave and the glass.
What pisses me off is, I got him from a place called the Turtle Store. I sent the manager all the pics of his tank, filter, lights and so forth and he said it looks like a tank he will love!!! Why not be honest, for his benefit??!!