FILTRA 5

MIX OF FILTER MATERIALS
Aquariums are enclosed environments, in which as opposed to natural environments such as the sea, lakes or rivers, there is no guarantee of continuous change of water. Inside the tank, as in nature, pollutants and toxins are produced by the metabolism of the organisms living there. These substances must be adequately equalized to avoid harming the health of fish, plants and invertebrates. The decomposition of organic nitrogen such as, the amino acids present in waste products, in the putrefacation in organic substances and left over food, constitute a constant source of ammonia through a process known as “Ammonification”. This process is set in motion by specific bacteria which, by breaking down the amino nitrogen, frees ammonia. The ammonia molecules, produced in this way in the aquarium, are highly toxic even in low concentration for the organisms living there, and therefore to be rendered harmless must undergo two further oxidation reactions by free bacteria:

• a process called nitrification in which nitrificating bacteria plays a major part which transforms ammonia in nitrites (NO2);
• a process known as nitritition in which the nitrificating bacteria oxidise the nitrites and contributes to the production of nitrates (NO3).

The complete process shown above is known as “the nitrogen cycle”.

II nitrati in concentrazioni fino a (20 mg/lt) non sono tossici per gli organismi allevati in acquario e la loro concentrazione può essere mantenuta sotto controllo per mezzo di regolari cambi d’acqua e/o l’uso di apposite sostanze adsorbenti nel filtro. FILTRA5 is a mixture, composed in the right percentages from 5 filtering elements: (ADSORBO, DEPURO MARINO, REMOVER NO3, REMOVER PO4&SiO2, STILLA); created to meet the needs of all small aquariums, both freshwater and marine, the where the capacity of the filter is not sufficient to contain multiple different types of filter materials, resins, and polymers.