
Sera Gravel Brown 2-3 mm
Sera Gravel Brown 2-3 mm
The sera Gravel Brown is CO2- resistant and water-neutral, which means it has no influence on the water values and does not give off any color to the water. It consists of ground lava rock and is an ideal place for beneficial bacteria to settle due to its open, porous nature. In this way, it has a supportive effect as a natural biological filter medium. At the same time, it provides plants with optimal conditions for the development of strong roots.
Due to its natural structure, natural gravel is not suitable for keeping bottom-dwelling fish, such as Corydoras .
sera Gravel Brown has been tested by an independent institute according to DIN 38415-6 / EN ISO 15088 and is demonstrably free of harmful substances, making it also suitable for keeping and breeding sensitive animals.
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