What kind of substrate are you using? where is the top at for the tank? the pool you have in there wont work because the snake's under side is as smooth as the pole is so itll be difficult for him to grip. if you are getting a baby carpet dont worry about the hole side on the blue hide it will be able to get in and out of that without issue. You can also use one of those flower pot with a hole in the bottomthat you can get from home depot shouldnt be more than $5. Buy it, turn it upside down in the tank and you have a durable hide. Sometimes with cardboard (like my brisk ice tea one in the picture) once it gets wet too many times or the animals feces on it, it becomes trash so you'll eventually have to toss it.
Below is the set up I have for my 3/4 foot carpet python the only thing you cant see is the water dish lol. its real simple a hide, newspaper as substrate because its free and easy to change as soon as they move their bowels on it, a water dish big enough for him/her to soak in and a hot spot.
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