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Green water is ugly. If it gets bad enough, the thick green cloud will block out your aquarium. Here's how to get rid of green aquarium water for good.
It’s very common among aquarium owners for their fish tank water to turn green. Greenish water can be caused by a number of factors that result in an algae bloom. Algae blooms occur from an overgrowth of algae in the tank. A free-floating algae bloom called phytoplankton causes water to turn green.
Green water is usually due to either a significant excess of light (particularly direct sunlight) or a major water quality problem. Although it may look terrible, it is not toxic to fish, unless it reduces the amount of oxygen available in the water (when light is not present).
Green aquarium water is ugly but usually not harmful to aquatic life. The main causes behind green discoloration in a fish tank are lighting issues, overfeeding, overstocking, or poor aquarium maintenance.
Why Is My Fish Tank Water Green? Green water in a fish tank is usually caused by an excess of algae growth. Factors like excessive light, high nutrient levels, and poor filtration can contribute to this issue.
The number one cause of regular water turning green is excess UV light – either from aquarium lights, or from direct sunlight. Too much exposure to light can cause phytoplankton to multiply exponentially in your tank, as they can now perform photosynthesis at a greater rate.
The most effective and effortless way to get rid of Green Water is to install an Ultra-violet Sterilizer on your aquarium. As water passes through the UV chamber, suspended algae are eliminated, along with many disease-causing organisms.