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Energy Efficiency: Designed for low energy consumption
Available in a classic black finish
Not suitable for ponds with spawning frogs or toads
discouraging herons from returning
Alfagrog E25 Filter Media 20L / 15kg bowfront Energy Efficiency: Designed for lowAlfagrog 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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