What are alga blooms?

Answer 1

Algae blooms are when too much of a pollutant enters a waterway and choke plants and algae grows rapidly.

Or people say it as overfed plants can grow so quickly that they choke waterways. When

overfed, algae also reproduce rapidly that is called a algae bloom.

Answer 2

"Alga" is the singular form of the word "algae."

An algal bloom is a rapid increase or accumulation in the population of algae in an aquatic system, whether it be an artificial system such as a pool, or a natural aquatic system such as the ocean or a freshwater lake. Depending on the type of algal bloom, it can be caused by the type of nutrients and phosphates in the water; warm temperatures; or long periods of high light intensity.

There is an article on the wikiHow website on removing algae from your pool at the related link below.