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Guaranteed, reef-safe elimination of Aiptasia
The freshwater master test kit tests the parameters that affect the health of freshwater fish: pH, High Range pH, Ammonia, Nitrite and Nitrate
Protect shrimp and small fish from filter intake.
Black Pre-filter Sponge Cylinder 2 1/4″ x 4″
Fits most intake tubes up to 1″ in diameter.