Aqua One Marine Grit Size:15kg Flourite® Black is most effective

Flourite® Black is most effective when used alone as an integral substrate bed

It also has a cutout that accommodates the inlet pipe of the aquarium's filter

Switches on automatically above or below a set target temperature

Times the Length (m) x Width (m) x Average Depth (m) of your pond

Aqua One Marine Grit Size:15kg Flourite® Black is most effectiveAqua One Marine Grit Blends seamlessly into aquarium setups for a visually balanced, natural appearance Supports healthy populations of copepods and other small reef inhabitants Natural buffering properties help maintain stable pH and alkalinity around 8. 2 in marine, cichlid, and hard water aquariums Made from 100% natural Australian material Suitable for marine and tropical Australian sourced and packaged