Natural Coarse Black Gravel with a diameter of 2-4mm is an excellent substrate for fish and plants.

Thanks to the dark, contrasting blackness, it blends beautifully with the greenery of plants and various colors of fish.

Black Gravel has round edges, so it can also be used in the case of fish feeding at the bottom.

A 10 kg package is enough for a tank of about 60 liters.