How long have you owned the animal? 4 days · What is the enclosure size? 55 gallon tank · What type of substrate are you using (shavings, bark, paper towel, etc.)? Sand · What type of lighting are you using and at what distance(s) are they from the animal? (UVB and Basking) Basking only. · What are the temperatures within the enclosure and how are they being measured? Unsure · What is the humidity within the enclosure and how is it being measured? Unsure · What are you feeding (or attempting to feed) the animal? Red Shrimp, feeder minnows, earthworms, commercial pellets · What exactly are you concerned about? I got this turtle from a lady in PetSmart who was just giving it away. She had it in a 10 gallon aquarium (his shell is about 4 inches) without even a basking light! I'm more of a horse person, so I don't know a ton about turtles, but I know those are terrible conditions for a turtle. I had a 55 gallon aquarium in my basement, so I filled it up halfway and plopped him in. and figured I'd do the best I could for it, but I think I got in a little over my head! It has this white film on its back, but all the research I've done (Which is a lot, trust me) says its from calcium which makes sense since I have hard water. My problem is that he/she (I'm calling it a he) will not eat. I know it can take a couple days but it's been more like 4. I've even tried earthworms. Now, I do not have UVB lighting yet, or a water heater or a filter. I don't think I will get a heater because I live in an area where yellow bellied sliders are native, so I think it will be okay but that's why I'm here, I don't know. He also won't really swim, he climbs on the stuff in his aquarium instead of swimming on top of things and he walks along the bottom rather than swimming. I'm not sure if that's normal. He also won't bask, but that might be because it's not hot enough. Any tips, especially on getting him to eat? Is he too small for his age (2 years, or so I'm told, in the 10 gal his whole life))? Is the fact that he doesn't swim normal? Sorry about the length, I was trying to be as descriptive as possible.