Seachem Flourite Black Sand Planted Substrate Size:3.5kg refrigerate it and feed once

refrigerate it and feed once or twice daily for 1–2 weeks

It indicates that fine particles are clumping together before mechanical filtration removes them

Ceramic axles are available separately

and testing has shown that the magnesium content of some aquariums can be rather low

Seachem Flourite Black Sand Planted Substrate Size:3.5kg refrigerate it and feed onceSeachem Flourite Black Sand Planted Substrate Seachem Flourite Black Sand Planted Substrate is a stable, porous clay gravel substrate for natural planted aquariums and freshwater aquarium setups. This 3. 5 kg (7. 7 lb) bag is suited to aquarists who want a black sand style base for aquatic plants or a natural looking freshwater display. Key Benefits Specially fracted, stable and porous clay gravel for planted aquaria. Black appearance is particularly