2, soaking in water all day is easy to pneumonia, except for the need to dry the shell.
Sand and water are very important. This is how I raised a turtle the size of a nickel step by step, which lasted for 3 years.
The water can be buried about 2 cm on the turtle's back, and the sand should have a gentle slope. Constrained by the small turtle, it can easily climb up and dry its shell.
Don't let turtles bask in the sun in this weather. Otherwise, the tortoise will get heatstroke. You can hang shells on the balcony at night and in the morning.
The most important thing is to eat, and how to make the little turtle eat is the most important step. Don't let the tortoise eat the tortoise food sold in the shop.
My trick is: small fish or fish (deburring), the length of small fish is about 2CM, and the fish is cut into strips with a width of 2 mm and a length of 2CM. Tie it horizontally with wire and dangle it in front of the little turtle. Knowing the temptation, it ate it. It may not be easy to succeed the first time, but once it succeeds the first time, it will be much easier the second time and the third time. (Note that soft-shelled turtles should be eaten in water)
Slowly put the small live fish in and let it practice hunting by itself.
My turtle is now about 18CM from head to tail. I put a crucian carp, the height is 10 cm, and it will be finished soon.