Dalen® Natural Enemy Scarecrow® Rotating-Head Owl Aqua Ultraviolet Provides stable cold-weather nitrification

Provides stable cold-weather nitrification

Approximately 500 square feet of surface area per 1 cubic foot

The above listed parts are also available for individual purchase

By not using the piping in normal filtration mode

These bacteria convert ammonia and nitrites into harmless nitrates

Dalen® Natural Enemy Scarecrow® Rotating-Head Owl Aqua Ultraviolet Provides stable cold-weather nitrificationThe Dalen Natural Enemy Scarecrow Rotating Head Owl deters pests from yards, gardens, balconies and patios while adding charm! This 18" hand painted, life like owl decoy deters all kinds of pests not with use of chemicals, but with movement. Its realistic head bobs and turns in the gentle breeze, providing optimal garden protection. Chemical free pest control Moved naturally by wind no power source needed! No batteries, no added costs, no maintenance!