Fluval Bio-Stratum Aquarium Substrate Select:8kg Durable construction for long‑term stability

Durable construction for long‑term stability

which is below the detection limits of standard testing kits—offering peace of mind for aquarists striving for the highest water quality

Copper is often used as a treatment for parasite infested fish and it is essential that the correct concentration is used as too high levels can be toxic to marine fish and invertebrates

Screw fitting allows for convenient use in standard home light sockets

This essential component in marine ecosystems is now available for home aquaria

Fluval Bio-Stratum Aquarium Substrate Select:8kg Durable construction for long‑term stabilityCollected from the mineral rich foothills of the famous Mont Aso Volcano in Japan and infused with beneficial nitrifying bacteria, Bio Stratum is specifically formulated to provide immediate biological activity and maintain ideal conditions for a thriving planted aquarium. Characterized by its non compacting 1 mm powder granules, Bio Stratum allows plants with even the finest and most delicate roots to easily spread throughout the porous substrate