Description It is non-toxic and colourfast. Sold in 2kg, 5kg, & 15kg bags. Particle sizes: 3.1-6.3mm. Colour: Black. Suitability: Tropical and cold-water aquariums. Terrariums and vivariums. Ponds, top-dressing pond plants. Water features. Potted Plants. Vases. Crafts & Hobbies. Coverage (approx.): A 5kg bag is sufficient for an area 40cm x 30cm x 2.5cm deep. 30 x 30cm aquarium – 1 bag required. 40 x 30cm aquarium – 1 bag required. 60 x 30cm aquarium – 2 bags required. 80 x 30cm aquarium – 2 bags required.
