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It also has a thickened plastic cap for extra safety
preserving the health of aquatic habitats
Perfect for New Ponds: Helps start biological cycles in freshly filled or cleaned ponds
Allow the newly prepared water to stabilise for about 10-14 days before introducing corals or fish
Black Knight 6" Dia x 12" Long Filter Brushes - 12 Pack tank-only It also has a thickenedWhat 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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