they are the white mites... and i threw away EVERYTHING wood and even removed all decor... like i said now there is only flower pots... water bowls and newspaper! the snakes are not happy... they dont have hides... im livid... when i mentioned it to the petco lady today when i went to pick up the mite stuff (natural chemistry) she just said well thats not good.. and did nothing..and i used the mite stuff to spray down the tanks and even tho i threw away the wood, I SPRAYED THAT TOO lol i just got out of the shower.. gross gross gross