Τελικά, τι κάνουν τα "βακτήρια"?

[xontros]

Μου έχει μείνει η απορία.. Όλα αυτά τα "σκευάσματα", τα οποία υποτίθεται πως περιέχουν βακτήρια, και με τα οποία μπορείς να "στρώσεις" το ενυδρείο και να βάλεις ψάρια ακόμα και μέσα σε 24 ώρες, τι είναι τελικά?

sera nitrivec
"να ειδικό μίγμα διαφορετικών υψηλής ποιότητας βακτηρίων καθαρισμού για το νερό του ενυδρείου. Το sera nitrivec εμποδίζει την σύγκέντρωση της αμμωνίας και των Νιτρωδών. Όταν χρησιμοποιείτε sera nitrivec σε νέο ενυδρείο, μπορείτε να τοποθετήσετε ψάρια εντός μόλις 24 ωρών.
http://www.sera.de/fileadmin/gbi/ser..._36.03_int.pdf

JBL Denitrol - Aquarium Starter
In new aquariums and after disease treatment: add triple dose on the first day and a standard daily dose for the next 9 days. Overdosing without harmful effects. Stock with fish after 3-4 days.

TetraAqua Safestart

Normally, when setting up an aquarium, it takes time to introduce the fish (sometimes weeks). This is because the filter inside the aquarium needs
to ‘mature’ in order to deal with harmful ammonia, produced by the fish, and nitrite. High levels of these substances are toxic to fish – an effect known as new tank syndrome.

TetraAqua

SafeStart

adds the beneficial bacteria that the filter needs to become active. By dealing effectively with ammonia and nitrite fish can be added immediately and new tank syndrome avoided.

TetraAqua

® SafeStart

is a revolution in fish keeping and the result of years of research. All previous thinking has focused on the species of bacteria called nitrosomonas and nitrobacter. In fact ammonia is only decomposed by bacteria of the species nitorsospira and nitrosomonas whilst the species nitrospira reduces nitrite in an aquarium. It is these latest findings in micro-biology that have made TetraAquaSafeStart possible.

http://www.tetra.de/doc/doc_download...37BE91D7F280EE

Seachem Stability
Stability™ will rapidly and safely establish the aquarium biofilter in freshwater and marine systems, thereby preventing the #1 cause of fish death: "new tank syndrome". Stability™ is formulated specifically for the aquarium and contains a synergistic blend of aerobic, anaerobic, and facultative bacteria which facilitate the breakdown of waste organics, ammonia, nitrite and nitrate. Unlike competing products, the bacteria employed by Stability™ are non-sulfur fixing and will not produce toxic hydrogen sulfide. Stability™ is completely harmless to all aquatic organisms as well as aquatic plants, thus there is no danger of over use. Stability™ is the culmination of nearly a decade of research and development and represents the current state of the art in natural biological management.

Use 1 capful (5 mL) for each 40 L (10 gallons*) on the first day with a new aquarium. Then use 1 capful for each 80 L (20 gallons*) daily for 7 days. Fish and other aquatic species may be introduced at any time as long as dosage is maintained for 7 days. For optimum biofilter performance use 1 capful for each 40 L (10 gallons*) once a month or with each water change and whenever introducing new fish or whenever medicating an aquarium.
http://www.seachem.com/products/prod...Stability.html

Τί είναι τελικά όλα αυτά? Ισχύουν αυτά που λένε? Τα έχει δοκιμάσει κανείς σε συνδυασμό με μετρήσεις για NH4, NO2 και NO3?