Granular black and white natural sand of high quality. Ideal for black and white aquariums.

Ensures bio-filtration by supporting colonies of beneficial aerobic bacteria that convert ammonia into less toxic compounds and creates conditions for species of aquatic animals that live in sand.

• Provides suitable support for various beneficial micro-producers such as amphipods, copepods, etc.
• Size: 0.3 - 0.8mm (5kg)