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Use in conjunction with Step 1 & 3
Large 2 litre (67
Size Paw Size Tiny to to 1" XXS up to 1
This is especially important for the HI758U Marine Calcium Checker as calcium is commonly present in tap water and residual amounts present in the cuvette will elevate results produced by the Checker
Fluval FX4/FX5/FX6 Bio-Foam+ - 2 Pack Airpumps Use in conjunction with StepDesigned specifically for the Fluval FX4, FX5 and FX6 high performance canister filters, Bio Foam+ pulls double duty as both an effective mechanical and biological media. Key Features: Mechanical Biological filter media Large porous surface area supports expansive beneficial (nitrifying) bacteria growth Effectively captures small particles and debris, particularly those that are not retained by the first stage of foam filtration Custom fit for FX