I own red eared sliders for some time now.
First you have to buy a basking platform called a turtle dock from zoo med
and its very easy to install.
Depending on the size of your tank there are many different sizes.
Look for it at your local pet shop for it.
Here is a link for the turtle dock
http://www.zoomed.com/db/products/EntryDetail.php?EntryID=167&DatabaseID=2&SearchID=5&SearchContext=YTo1OntzOjg6IlNlYXJjaElEIjtzOjE6IjUiO
3M6MTA6IkRhdGFiYXNlSUQiO3M6MToiMiI7czo4OiJLZXl3b3JkcyI7czo0
2VhcmNoX3kiO3M6MToiMCI7fQ==OiJiYXNrIjtzOjg6IlNlYXJjaF94IjtzOjE6IjAiO3M6ODoiU
Red-Eared Slider can stay dry for days to weeks, but they cannot eat without water, I mean enough water to site in while eating as they cannot swallow without the ad of water. If you are transporting the red-Eared being dry is okay, keeping a turtle as a pet dry will be almost considered torture as they will slowly die of starvation and dehydration
no
red eared turtles live in both ,water and land
They are semi-aquatic. They need a basking light and a basking area such as a floating log or basking platform so that they can climb out of the water to bask. This is essential to their health. If a red eared slider doesn't have an area to bask and can't get out of the water, it's shell will get soft and it will eventually die. They need UVA and UVB light in order to process their food. Heat and light are essential for these turtles. Keep them in water around 70 degrees and provide a basking area and a basking light that has both UVA and UVB rays or two lights, including one UVA and one UVB bulb.
No, they drink the water that they are swimming/living in.
Well, he is probably just out basking. I have a baby eastern painted turtle that stays out of the water most of the day. There is no need to worry just make sure that he doesn't get stuck to whatever he is basking on, from being dry. It is okay for him to be dry just make sure that he gets wet every 3 hours or so.
He may be adjusting to his new environment. You could try giving him tuna to entice his eating, or just give it time. He also could just not like the food he is being given.
Cheek it water it needs to be warm.
yes, it does.
Yes, red-eared sliders need a dry area to get out of the water. Above this area should be a turtle basking lamp. Aquatic turtles will bask daily. Basking keeps the turtle's skin and shell health from fungus while the UV in the light is needed for the turtles growth. Without a dry area and a basking light your turtle will not be healthy and happy.
A long twenty gallon fish tank is optimal, but a ten gallon is a good temporary tank. It should be filled up to half way with dechlorinated water and have a rock or other basking spot that it can get out of the water onto.
Yes, red-eared slider turtles can drown if they are unable to reach the water's surface to breathe, as they need to regularly come up for air. It's important to provide them with proper access to both water and a basking area to prevent this from happening.