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preventing the filter from building up solids
requiring specific conditions for optimum growth
These strains of beneficial bacterial lower the ammonia levels (which are toxic to fish)
Each scoop treats 48
but no tubing is included with the diffuser
DreamPond Koi Toilet I Bottom Drains Size:3" KoiToilet 1 with Diffuser preventing the filter from buildingKoi Toilet I Bottom Drains are a versatile and complete solution for aerated Koi pond bottom drains, with a sweep bottom design that eliminates trapping debris. Full 4" height over horizontal discharge pipe 3 4" air supply connection at the bottom through the center column (SLIP Connection for 3 4" rigid or flexible PVC). Diffuser on both sizes has recommended air flow rate of 25Lpm 40Lpm Screws are fully embedded in large and strong screw pockets
