Explain the nitrogen cycle in the most simple terms?

Question

so in science we had 2 fish tanks, one with plants and one with out, so what i need to know was how one had nitrogen and the other didn't, im very confused. We took pH, ammonia, nitrite and nitrate data, which is supposed to be included in our responce.

Answer 1

This link should help you: http://www.fishlore.com/NitrogenCycle.htm Just look at the diagram.

Here are other versions of the explanation:
http://www.firsttankguide.net/cycle.php
http://www.algone.com/cycle.php

Answer 2

WOW, Retards! published interior the fish area. To "Cycle" a tank thank you to make it pass in the process the nitrogen cycle. useful nitrofying bacteria that rbeath oxygen feed off of fishw aste and decaying remember(ammonia) that's poisonous. They convert it to nitrites then nitrates. Nitrates are much less poisonous in low tiers despite the fact that despite the fact that could be bumped off with the aid of water substitute. Water differences nevertheless eliminate ammonia as nicely. a nicely suited clear out helps upload floor field that isu good oxygenated to grant an surprising transforming into place for bacteria colonies. To cycle, you've gotten waster (decaying foodstuff/fish/previous fish water) and time. additionally there are business company products, "Cycle, Bio-spira, and tetra water conditioner with bio extract) do in basic terms no longer throw too many fish in without be conscious, provide the bacteria time to construct as much as the quantity fo fish interior the tank. i might maximum many times upload different fish appropriate right here and there. do no longer forget approximately, greater desirable water is greater confusing for fish to pollute as as we communicate that's why bigger=greater appropriate maximum fo time.