Seachem Flourite Black Sand 3.5kg Canister Filter The replacement Fluval U3 Polyester/Carbon

The replacement Fluval U3 Polyester/Carbon Cartridge are designed for:

Max Glass Thickness: 0

the Fluval C3 Power Filter provides extensive 5-stage filtration–two mechanical

Rinse before use

Seachem Flourite Black Sand 3.5kg Canister Filter The replacement Fluval U3 Polyester/CarbonDescription Flourite Black Sand is a specially fracted stable porous clay gravel for the natural planted aquarium. Its appearance is best suited to planted aquaria, but may be used in any freshwater aquarium environment. Flourite Black Sand is most effective when used alone as an integral substrate bed, but it may be mixed with other gravels. Gravel modifiers such as laterite are not necessary. Flourite Black Sand is not chemically coated or treated