Why the Green Algae will grow in the aquarium?

Update: 2016-08-18 13:03      View:
The Green Algae appear in the aquarium, beside the water temperature and light factors, there is an important factor is too much Nitric Acid (HNO3) provides a wealth of nutrition and food to feed green algae.
Too much Nitric Acid (HNO3) means too much Ammonia Nitrogen. Here, you can understand like that Nitrifying Bacteria is less enough or it is not so magical. That is because the (NH3) of Ammonia Nitrogen wasn’t decomposed by Nitrifying Bacteria totally, so the rest of (NH3) of Ammonia Nitrogen react with oxygen in water, and create Nitric Acid (HNO3) to feed the Green Algae.