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• 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 unwanted pollutants released into the water. Fine, round-shaped granite sand is gentle on sensitive barbels of bottom-dwellers.
• Use: spread substrate on top of the nutrient substrate (approx. 6-8cm for vigorous plant growth).