Aquarium Sand Gravel Fish Tank Natural Substrate (2kg, Grey 2 3mm)

Grain size: 2-3mm .Chemical composition: SiO2 99% (Silica) Safe for all living organisms. It does not influence water parameters, and does not change the Gh, Kh, Ph values. Suitable for every biotope and above all, perfect for plant aquariums. The right fraction favours the good rooting of plants. 100% Natural. Every owner of underwater pets knows that decorations and aquarium substrates not only look nice, but also affect the environment of our fish. That is why it should be ensured that most of them are natural. Not artificially coloured and looks natural. If the substrate is too bright, the light rays reflected from it may have a bad effect on the fish's well-being. Our gravel has a natural light shade and does not produce strong light reflections. Will not require rinsing before use. After pouring out the substrate into the aquarium and covering it with water, a natural cloudiness may occur, which will disappear very quickly after starting the filtration. You can rely on our experience. Buy sand from companies that specilise in aquarium substrates.