Amazon river gravel

The river gravel is a natural product and contains no lime. The stones are rounded. It is available in four different grain sizes. It should be rinsed before use.
The substrate in the aquarium can consist of sand, gravel or a mixture of both. Attention should be paid to the needs of the fish. The average gravel should be rounded and have a maximum grain size of 2-3 mm. A gravel layer of 6-8cm is recommended so that the plants can form sufficient roots. Amazonas gravel offers a natural substrate that is suitable for all fish species and their habitat.
You can use the following formula to calculate how much gravel you need for your aquarium: (length x width x gravel height x 1.6) / 1000