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Published on May 21, 2012

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How to kill blue green algae in your aquarium!

Do you have a problem with Blue Green Algae? This video can help!! Ok I made this after experiencing the problem myself in my tank. I know what a nuisance this stuff can be so I wanted to let you guys know that there are a couple of good effective ways to get rid of it.

Firstly I want to stress that just because you have this stuff in your tank, it doesn't mean you are doing anything wrong. This can grow in any tank. Even in ones with no nutrients.

Blue green algae is actually a form of bacteria called cyanobacteria. It is an infection that needs treating otherwise it will kill your plants and make your tank look awful. There is nothing that will eat this stuff as it is highly toxic to all aquatic life.

There are 2 good ways to treat cyanobacteria. You can either kill it with an antibiotic called Maracyn. or you can use Hydrogen Peroxide (which is my preferred method.) both will work well, but you need to be cautious when using these products. keep an eye on the fish as an overdose can be fatal.

Cyanobacteria (/saɪˌænoʊbækˈtɪəriə/; also known as blue-green algae, blue-green bacteria, and Cyanophyta) is a phylum of bacteria that obtain their energy through photosynthesis. The name "cyanobacteria" comes from the color of the bacteria (Greek: κυανός (kyanós) = blue).

The ability of cyanobacteria to perform oxygenic photosynthesis is thought to have converted the early reducing atmosphere into an oxidizing one, which dramatically changed the composition of life forms on Earth by stimulating biodiversity and leading to the near-extinction of oxygen-intolerant organisms. According to endosymbiotic theory, chloroplasts in plants and eukaryotic algae have evolved from cyanobacterial ancestors via endosymbiosis

Cyanobacteria can be found in almost every terrestrial and aquatic habitat: in oceans, fresh water - even bare rock and soil. They can occur as planktonic cells or form phototrophic biofilms in fresh water and marine environments, they occur in damp soil, or even on temporarily moistened rocks in deserts. A few are endosymbionts in lichens, plants, various protists, or sponges and provide energy for the host. Some live in the fur of sloths, providing a form of camouflage.

Aquatic cyanobacteria are probably best known for the extensive and highly visible blooms that can form in both freshwater and the marine environment and can have the appearance of blue-green paint or scum. The association of toxicity with such blooms has frequently led to the closure of recreational waters when blooms are observed. Marine bacteriophages are a significant parasite of unicellular marine cyanobacteria. When they infect cells, they lyse them, releasing more phages into the water.

Cyanobacteria include unicellular and colonial species. Colonies may form filaments, sheets or even hollow balls. Some filamentous colonies show the ability to differentiate into several different cell types: vegetative cells, the normal, photosynthetic cells that are formed under favorable growing conditions; akinetes, the climate-resistant spores that may form when environmental conditions become harsh; and thick-walled heterocysts, which contain the enzyme nitrogenase, vital for nitrogen fixation. Heterocysts may also form under the appropriate environmental conditions (anoxic) when fixed nitrogen is scarce. Heterocyst-forming species are specialized for nitrogen fixation and are able to fix nitrogen gas into ammonia (NH3), nitrites (NO−
2) or nitrates (NO−
3) which can be absorbed by plants and converted to protein and nucleic acids (atmospheric nitrogen is not bioavailable to plants).


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