sera Bio Nitrivec
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The dangerous toxic substances ammonium and nitrite are being formed permanently in aquarium water. sera Bio Nitrivec, a sera biotechnology product, contains millions of purification bacteria, by whose support a stable biological equilibrium forms quickly and reliably so the occurring toxic substances are broken down continuously. The additionally included mineral volcanic rock removes pollutants, effectively binds cloudiness, and provided a suitable settling area for the purification bacteria. For healthy, clear, and biologically active water. Allows adding fish already after 24 hours when combined with sera Aquatan!