Dark substrate for freshwater and saltwater aquariums.

Key Features:
• Perfect hold for plant roots: substrate with 0.2-0.6mm grain size for freshwater and marine aquariums and terrariums.
• Vigorous plant growth: prevents the seeping in of sludge and other waste material with its fine granulation and density.
• Ideal for fish, invertebrates and plants: no release of unwanted pollutants into the water. Fine granite sand is gentle on the sensitive barbels of the bottom-dwellers.
• No light reflections - full colouring of plants and fish: easily scared animals feel more comfortable and show their full, natural colouring.