Product Description
API Aqua-Detox Aquarium Filter Pads Size 4 - Effective Filtration in Rena Nexx External Filters (Pack of Two Cartridges)
API Aqua-Detox pads fit the Nexx external filters and are scientifically proven to remove ammonia and nitrite to reduce the riskof fish loss when starting an aquarium. also reduces nitrates.
The 4 sided micro filtration pad cartridge for mechanical filtration is filled with superior resins for chemical filtration. 100% of water passes through the cartridge for maximum efficiency, they are easy to change and no mess.
Use when starting up an aquarium or whenever ammonia or nitrite is detected