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it provides large amounts of surface area for adsorption of impurities
Wide Coverage: Each 100ml bottle treats up to 440 litres of water
This product focuses on replenishing key nutrients required by fish
For marine aquarium use
Engineered for versatility and efficiency
Black Knight 4" Dia x 9" Long Filter Brushes - 12 Pack aquacolour-white it provides large amounts ofWhat are Black Knight Filter Brushes: Black Knight filter brushes are made from the very highest quality Hydrotek polypropylene twisted into two stainless steel wires to form a cylindrical brush with a loop at one end for hanging. The other end is capped with a plastic knob for safety. They last indefinitely and are the easiest to use, most efficient and most cost effective pond filter medium you can buy. Our brushes are used in filtration systems in
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