Every once in a while I disinfect and sanatize the tank and furniture with a water and bleach solution. Very low concentration, less than 5%. Everything must be rinsed off very well and left to air out before any animal is put back in.
Some people use Hydrogen Peroxide.
If there is anything the nonconformist hates worse than a conformist, it's another nonconformist who doesn't conform to the prevailing standard of nonconformity.