Favours the settlement of aerobic bacterial strains which transform nitrites and ammonia. 
Recommended doses to start a new aquarium:

• 1^st day: 10 ml ( 2 caps) every 10 litres of water

• 2^nd day: 5 ml (1 cap) every 10 litres of water

For every subsequent water change and as a weekly maintenance dose: 5 ml (1 cap) every 40 litres of water.

After using medical products and/or the addition of new fish: 5 ml (1 cap) every 40 litres of water.