Fluval FX4/FX5/FX6 Bio Foam Plastic while they remain visible to

while they remain visible to the terrarium inhabitants

In the absence of free ammonia the unit will assume a yellow or faint yellow-green color

and the plant must be pruned before it becomes so compact that no light reaches the lower leaves

A: Not at all

Fluval FX4/FX5/FX6 Bio Foam Plastic while they remain visible toDesigned specifically for the Fluval FX4, FX5 and FX6 performance canister filters, Bio Foam captures large particles and debris for effective mechanical filtration. Mechanical filter media Custom fit to prevent debris bypass Ideal pore size allows efficient water flow and longer media lifespan Enhances the biological filtration process For use in freshwater or saltwater aquariums Convenient 3 pack format 3x foam pads