I have two 42mm Golden Greek Tortoise . My turtle case is 20 inches, I use powersun 100w 12hr per day, the temperature of the center of the case is 84F. The cold corner area is 80F. The humitity is 32-35%. I've raised them for three months already. One of the turtles are healthy. But the other one has been sick for about three weeks. He has a problem. He is always out of energy. When I pick him up, he is very tierd and out of energy, he just closes his eyes and not move all day. When I give him food, he eats a little bit. But then, the next few days he doesn't eat at all. He is very skinny. And, his shell got softer. Does anyone know what kind of problem this is? Is there a way to give him more energy? Or I can buy any vitamin or something for my turtle? And if my turtle does not eat, is there a way to make him eat the vitamin or something? I have NutriBAC where you put it in the water, and then put the turtle into the water, but he does not drink the water. Thank you.