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Flourish Excel offers aquarists a practical alternative or complement to CO2 injection systems
Allow the newly prepared water to stabilise for about 10-14 days before introducing corals or fish
Use 50ml per 1150 litres of pond water
preserving the health of aquatic habitats
Black Knight 6" Dia x 12" Long Filter Brushes - 12 Pack tank-only Flourish Excel offers aquarists aWhat 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