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discouraging herons from returning
Safe for both glass and acrylic
Offering both practicality and design continuity
Small (PT2226): 45 x 9 x 20 cm
Energy Efficiency: Designed for low energy consumption
Alfagrog E25 Filter Media 20L / 15kg bowfront discouraging herons from returningAlfagrog filter substrate is highly porous, which gives it a large bacteria adhesion surface and optimal biological action. Alfagrog is a porous foamed ceramic material, which is lightweight, strong and inert. Its high surface area makes it the natural choice for colonisation by microorganisms in biological filtration systems, resulting in cleaner water. Key Features & Benefits: Extremely high surface area Highly porous Inert, pH neutral Lightweight
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