How To: Replace a UV light in a Tetra External UV Clarifier Designed to eliminate that unsightly green or pea soup colored water. How it works, water is pushed through the clarifier via a pump and the high intensity UV light kills off the microscopic algae cells that form green water.
Designed to eliminate that unsightly green or pea soup colored water. How it works, water is pushed through the clarifier via a pump and the high intensity UV light kills off the microscopic algae cells that form green water. Remember, a UV clarifier is only designed as an enhancement to your existing pond filtration, not a means to total filtration.