So today, I got a red eared slider whom I've named Marco. Since I don't have a fish tank, I'm using Anya's bathtub (she won't be using it for a year or so anyways) until I can get him a better tank. Anyways, there's a small hump, and I'm trying to get him to go up the hump so he can bask, but he's clearly not understanding, so I have to put him on said hump. Are turtles smart? Can I teach Marco to climb up or just put in more water?