Mechanical foam filter block for Fluval Multi-Stage Canister Filters
Traps debris and particulates to help keep aquarium water clear
Replace foam every 6 months for optimum aquarium water quality
Improve aquarium water clarity and keep your Fluval Multi-Stage Canister Filter functioning its best. Fluval Filter Foam Blocks provide mechanical filtration that effectively captures particulate waste. Helps keep aquarium water clear and prevents premature clogging of other filter media in the Module Stack. Custom fit prevents bypass and special pore size and design allows efficient water flow with less clogging for long-lasting filtration.
Although the primary purpose of the Fluval Filter Foam Block is mechanical filtration, biological activity will eventually occur within its pore structure to support enhanced biological filtration. Fluval Filter Foam Blocks should be cleaned monthly and replaced every 6 months to ensure best performance.
Mechanical filtration can greatly improve the health of most aquariums, and is also important for the efficiency of your biological filtration. The process is simple: mechanical media strains solid debris.
Biological filtration is the action of bacteria breaking down dangerous ammonia, converting it to nitrite, and then converting nitrite to less toxic nitrate. This article discusses how the process works.
FREE economy ground shipping to 48 connecting states only on orders $19 or more. FREE economy ground shipping - NO MINIMUM - on any order containing Prescription or Flea and Tick products. See
full shipping rates here.