there is a difference between cleaning and disinfecting.
Bleach is great for cleaning and disinfecting, but extra care must be taken to rinse well after using bleach in an enclosure. The common dilution of bleach is one cup of bleach to one gallon of water. Bleach does not kill coccidia: you will need an ammonium chloride based cleaner. Bleach is a broad spectrum disinfectant and is effective against bacteria, mycobacteria, both enveloped and non-enveloped viruses and spores. It has limited effectiveness against fungi.
Undiluted ammonia has been considered the only disinfectant that will kill crypto within 30 minutes of contact. Crypto is extremely difficult to kill and the undiluted ammonia should be left on the surface for 20-30 minutes to ensure effectiveness.
Hydrogen Peroxide contact on mold in an enclosure is a safe way to kill the mold. Purchase the higher concentration of 25% or greater, the diluted peroxides in the drug stores are not a great enough concentration. You can use Peroxide to kill crypto. Peroxide is a broad spectrum disinfectant that is effective against bacteria, mycobacteria, enveloped and non-enveloped viruses. In July, 2006, the FDA issued a warning about the high strength hydrogen peroxides, saying they could lead to serious health risks and even death.
Bleach is commonly available an works generally well. it won't kill crypto however. The use of vinegar is customarily used too sweeten water tank. the flavor is generally more tolerable than bleach. Of course in an emergency peroxide and iodine can be used to sanitize water an remember that both are poisonous to humans.
Cryptosporidium is really nasty and can be found in many water supplies which are not treated such as surface lake and some well water. it is also transmittable between human, animal, insects and birds. Of the technologies available to the drinking water industry, membrane processes (forms of micro- and ultra-filtration) appear to provide the most significant levels of Cryptosporidium removal.
Certain home water filters are effective in removing Cryptosporidium from drinking water. These filters either use reverse osmosis, or have an absolute pore size of one micron or smaller. Keep in mind that all filters must be properly maintained in order to be
effective. I use a filter system and it seems to more than satisfactory.