API Phos-Zorb for API Nexx & Rena Smartfilter, Size 6 - 5.25 oz - (Treats 55 Gallons) Luau while the secure lid locks

while the secure lid locks in freshness and keeps curious paws out

100 stimulation levels

Each Eight Track includes a feather attachment and catnip tail for additional sensory stimulation

Other styles available: Bark

Expandable: Can add extensions to span widths up to 54

API Phos-Zorb for API Nexx & Rena Smartfilter, Size 6 - 5.25 oz - (Treats 55 Gallons) Luau while the secure lid locksAPI Phos Zorb for the API Nexx and Rena SmartFilter selectively removes ammonia, nitrite, and nitrate from freshwater and saltwater aquariums. It also removes phosphate, a by product of fish metabolism and decaying organic matter and an additive in some tap water supplies, aquarium products and filtration media. Easy to use filtration media Eliminates cloudy water caused by phosphates Will not remove trace elements and will not affect pH Sizing: Size