Sera Anthracite gravel is resistant to carbon dioxide and neutral towards water, meaning it has no effect on water parameters and does not color it. Due to the grain size ranging from 1 - 3 mm, plants can grow excellently on it. Thanks to its rounded grains, the natural gravel is also suitable for breeding bottom-dwelling fish like catfish.

Sera Anthracite gravel has been evaluated according to DIN 38415-6 / EN ISO 15088 by an independent institute and has been proven to be free of contaminants. Therefore, it is also suitable for breeding and caring for sensitive animals.