Eheim Substrat Pro 2L Bio Filter Media

High-Efficiency Biological Filtration for Freshwater & Marine Aquariums

Eheim Substrat Pro 2L is a premium bio filter medium designed for optimal biological decomposition of harmful toxins in your aquarium. After mechanical filtration with Eheim Mech, Substrat Pro provides ideal colonization conditions for beneficial bacteria, thanks to its unique sintered pearl-like shape. This ensures maximum bacterial growth, resulting in clear, healthy water and stable water parameters.

Its high bulk density and porous surface allow complete utilization of filter volume, prevent clogging, and create the best possible area for bacteria colonization. The result is faster decomposition of ammonia and nitrite, leading to a safer and more stable aquarium environment.

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Key Features

• High-performance biological filter media
• Sintered pearl-shaped glass spheres
• pH neutral and inert material
• 450 m² surface area per litre for maximum bacterial colonization
• 4x faster decomposition of toxins compared to standard media
• Complex pore system improves bacterial adhesion
• Washable and reusable for prolonged usage (up to 50% longer)
• Promotes stable water values and healthy aquatic life

Benefits

• Clear and healthy water through efficient biological filtration
• Reduces harmful ammonia and nitrite levels rapidly
• Extends filter service life by preventing clogging
• Ideal for both freshwater and marine aquariums

Usage

Rinse before first use, place in filter after mechanical filtration media, and enjoy long-lasting, effective biological filtration. Can be reused multiple times after rinsing.