Whats the difference between a UV Clarifier and a UV Sterilizer?
UV-Clarifiers are used to kill algae and some disease organisms. Water flows through UV-Clarifiers faster than the UV-Sterilizers. UV-Sterilizers kill 99% of floating algae as well as other living organisms. They do not harm the beneficial bacteria that grow in filters and on rocks, etc. in the pond. They kill the organisms that are floating in the pond water. The best physical location for UV filter(s) is after the biological filter and before the return to the pond. Most koi keepers opt for the UV Sterilizers to assist in killing any harmful bacteria and parasites.
