If I may add, you should buy 2 large reptile basics hides for your snake when you get a new cage, if you don't have any yet. They are not very thick so the heat from the rhp penetrates good giving your snake the correct temp inside the hide. A thicker hide will have problems getting heat in. Plus they are very easy to clean and provide a dark secure hiding place. I use them for all my bps. I say large size bc my ivory is 1072g and fits in a large quite well so your 1000g snake should have no problem fitting.
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