I have a sulcata tortoise who is approximately the size of a baseball. I’ve had him in a 10 gallon tank since I bought him when he was a baby. Yesterday my boyfriend brought home a 40 gallon fish tank as an upgrade for my tortoise. I went to the pet store and bought higher wattage bulbs (UV, heat lamp, and red heat lamp for night time). Yesterday morning I went to feed him and noticed the tank was 70F. My tortoise was very cold. I immediately brought him outside in the sun and he went back to being himself. I went back to the pet store and explained to them What had happened. They told me the tank was too cold and to get a heat pad that sticks under the tank to help warm the sand. I placed it yesterday. I woke up this morning to feed the tortoise and it is now 11:58 am and he has not eaten. I even tried placing him at his food dish and he turned around and walked away. He keeps hiding under a piece of wood that I have in his tank. I don’t know what to do. I feel like every time I go to the pet store I get someone who tells me something different. I just want my tortoise to be ok. Does anyone have any suggestions.