Green water in your fish tanks is seriously a no brainer. It’s because of too much algae growth and the most difficult part is getting rid of it all. It is much easier to cure this problem, if you understand why it happened. Here are the most common causes of green water in fish tanks.
Excessive Light: This is by far the most common cause for green water but it’s the easiest to cure. To stop this from happeneing, reduce the amount of time the tank’s lights are on and move the aquarium to a new location with limited sunlight.
Too Much Nutrients: Algae growth is largely enabled through the nutrients phosphate and nitrate. To combat this problem, it’s best to get rid of them at their source. This can be a little more difficult. However, for immediate relief you can easily do a water change.
Phospates: There are two sources for phosphates, decaying matter like fish food, and the water itself. You should always test your tap water for its phosphate levels before using the water. If the levels are too high, you will need to use RO water. You could also try using a phosphate remove to treat the water in the tank. Other suggestions include switching to a brand of fish food with less phosphates and reducing the amount of food you feed them.
Nitrates: As a byproduct of fish waste, nitrates naturally float around the aquarium water over a period of time. To keep this to a minimum make sure you keep your filter clean and that your fish tank is large enough. Rising nitrate levels is also caused by a cluttered aquarium so try not to overstock your tank with décor.
Keep in mind that if you want to get rid of green or cloudy water in your fish tanks, take part in 10-15% water changed every week, keep your gravel super clean, and use quality fish food.
Article Source:http://www.articlesbase.com/pets-articles/why-does-my-fish-tank-have-green-water-1585128.html
