What is swimming pool Algae?

Algae are microscopic aquatic plant-like organisms. They do not have the same structure as higher plants such as roots, stems and leaves. However, they are like any other ordinary plant in that they require the same type of nutrients to grow and utilize sunlight to carry out photosynthesis. In swimming pools, algae can be quite a nuisance; however, they are actually the most important photosynthesizing organisms on earth. They capture more of the sun's energy and produce more oxygen (a byproduct of photosynthesis) than all other plants combined. In addition, many species of animals depend on algae as a food source.

Algae size can vary greatly and they can grow in a number of different habitats. Algae can endure a wide range of temperatures and have been found growing everywhere from hot springs to deep within polar ice. Microscopic algae, called phytoplankton, are typically found in lakes and oceans. The largest forms of algae are seaweeds that can grow up to 300 ft. and stretch from the bottom of the ocean to the surface of the water. Although most algae grow in water, they can also grow on soil, trees, under or inside porous rocks, and even on some animals.