Fluval U3 - Poly/carbon Cartridge 2 aqua soil Unlike competing products that mix

Unlike competing products that mix nitrate and phosphate in a fixed ratio

Coral Colours Pro Test Kit

Used to treat corals suffering with parasites

It is the only spherical carbon on the market

Bio-Screen Pad

Fluval U3 - Poly/carbon Cartridge 2 aqua soil Unlike competing products that mixFluval U3 Poly Carbon Cartridge 2 Pack (A491) The replacement Fluval U3 Polyester Carbon Cartridge are designed for: Fluval U3 Underwater Internal Filter Fluval Poly Carbon Cartridge has two unique filtering sides that combine to provide thorough and effective chemical filtration, the crucial second stage in the filtration process. The polyester filter pad side filters out fine debris and contaminants. The carbon side filters out harmful liquid