As long as there are aquariums, there will be in-depth discussions about how frequently the water should be changed! Although this opinion is nearly obsolete, there are some exotic fish keepers who believe the aquarium works with a biological balance similar to that found in nature, and that changing the water can damage this.
Blue algae looks like a green-blue carpet which can cover plants, decorations, and the bottom layer of the aquarium. Not only are they an eyesore, but blue-green algae can pose a significant risk to all forms of life in the aquarium. But what actually are they, and how do they grow? Read on to find out how to effectively combat and prevent the build-up.