i've had my snake for almost a week now and i believe it's getting close to cleaning time but i'm not quite clear how. i don't want to use the wrong chemicals or the wrong amount of it and hurt my snake. So what chemicals shoudl i use for cleaning and disinfecting? i read that hydrogen peroxide and viniger would be the safest in two seperate spray bottles, but how would i clean the wood or other porous furnishings in my tank? and i also have forest bark by exo terra as substrate how often do i need to change it?