Fluval BioMax U2 / U3 / U4 size-150-watt Superior leak-proof absorbency in 5

Superior leak-proof absorbency in 5 layers

Use at start-up and whenever adding or replacing water

Puppy rubber bone chew and treat dispensing toy with rope

Made using all-natural ingredients

Fluval BioMax U2 / U3 / U4 size-150-watt Superior leak-proof absorbency in 5Fluval U2 U3 U4 Biomax 110G Fluval BioMax provides an optimal environment for the colonization and growth of beneficial bacteria. The unique bio rings have a complex pore system that provides an optimal environment where beneficial bacteria can thrive. Fluval BioMax also reduces and controls ammonia and nitrate. Provides an optimal environment for the colonization and growth of beneficial bacteria (biological filter media) Unique bio rings have a