algae

What is green aquarium water? If your aquarium water is discoloured and you’re unable to see inside your aquarium then you’re suffering from green water. That unsightly green and cloudy aquarium water is caused by algae. Algae is a common form of aquatic plant life found in most aquariums in varying quantities. In small amounts it is harmless and a source of food for some aquarium creatures. But if allowed to bloom and build up, it can turn your aquarium water opaque, blocking out natural light and potentially causing harm... Read More