ok so i have a homemade rack and the heat tape i have is working great but there is 1 question i have 1 level on the rack has a buzzing sound. just wondering if this is bad and is there any way to fix it?

next i believe i read something on here about head rub. well i have 1 snake that seems to have a mark on his head and i believe that is what happen. any way to help him heal?

and last i have seen the scale roit and the scale burning. i was just wondering if there is any home remedy to help with that?

thanks alot