sera Gravel Anthracite 1-3mm
Anthracite is CO2-proof and neutral towards the water, i.e. it has no influence on water parameters and does not tint the water. Due to a grain size of 1 - 3 mm, plants can grow excellently. Due to being round-grained, the natural gravel is also suitable for keeping bottom-oriented fish such as catfish. sera Gravel Anthracite is evaluated according to DIN 38415-6 / EN ISO 15088 by an independent institute and is proven to be pollutant-free. It is therefore also suited for keeping and breeding sensitive animals.