Why did the water in the koi pond turn green?

        Fish pond water turns green is one of the problems we often encounter, often sudden outbreaks, very affect the ornamental, here to introduce you to the green water.

        chlorella(commonly known as green algae), are organisms that have thrived on Earth since 540 million years ago. And Chlorella is the culprit when the water in your fish pond turns green.

        Chlorella is a highly efficient photosynthetic plant that reproduces by photosynthetic autotrophic growth. Many fish enthusiasts are struggling in the hope of removing chlorella from their fish ponds, and for ornamental fish, the presence of chlorella is a real eyesore.

        Chlorella stabilizes and purifies the water, absorbs and transforms toxic substances, which is beneficial for fish ponds, but because many fish enthusiasts find it an eyesore, they are actively removing the green water.

        Chlorella lives in fresh water, it uses sunlight, water and carbon dioxide, with the vigorous reproduction ability of dividing four cells every 20 hours, constantly converting the sun's energy to generate algae containing a variety of nutrients, and in the value-added release of a large amount of oxygen; and its photosynthetic capacity is more than 10 times higher than that of other plants.

        If the growth of chlorella is restricted, usually the number of algae cells can be maintained stably for 2-3 weeks, if after that there is still no favorable environment for the growth of chlorella, they will die in large quantities, and the number of cells decreases rapidly. We fish often use a variety of ways to remove, but please do not be anxious, is the correct method of chlorella will still exist for half a month. This is one of the reasons why people feel that the greenish water in the fish pond is very stubborn.

Fish pond water turns green solution

        Fish pond water turns green by a variety of different single-celled green algae, such as chlorella, chlamydospermum, etc., of which chlorella accounts for the vast majority, so chlorella is usually the main cause of green water.

        Chlorella grows rapidly in water that contains more organic matter and can form dominant species because the organic matter is broken down by bacteria into ammonia, forming nitrates, which are a food source for chlorella. With an abundance of food and enough light sources they will continue to disaggregate, causing the water to suddenly turn green within a day. Limit the growth of chlorella is mainly the ratio between nitrogen and phosphorus, when their ratio reaches 7.1 to 3.0, chlorella grows very quickly, in general, the phosphorus content in our fish pond is not high, so even if the nitrogen is higher water is more fertilized green water will not happen.

▶ Eliminating the Green Water Approach Cure

        1(math.) genusEstablishment of a sound filtration systemEliminate ammonia, nitrates. This includes enhanced physical filtration, filtering out as much food fecal debris as possible, and regular cotton washing, which reduces the chance of organic matter being broken down by bacteria into ammonia and phosphates.

        2(math.) genusReduce or minimize sources of organic matter.. This includes reducing the stocking density of the fish and feeding them less. Change water frequently.

        3(math.) genusLighting should be appropriate.. Chlorella undergoes intense photosynthesis in bright light and grows rapidly. In combination with too much lighting, green water is sure to erupt. Especially where direct sunlight hits.

▶stopgap solution

        1, with a germicidal lamp:UVGermicidal lamps destroy biological DNA and can sterilize as well as eliminate algae, and can be used to eliminate single-celled chlorella from the water. The green water usually disappears in about 3 days, usually no more than 10 days.

        2Coagulants: Filter out the planktonic algae condensation, not recommended, too much is harmful to fish.

        3, biological control:Use daphnia to eat the chlorella away, provided there are no daphnia-eating fish in the pool.

        4, salinity control:Chlorella is a narrow saline organism and is sensitive to increases in salinity, so adding salt to the water is helpful in green water elimination.

        5, with an algaecide:Although it can get rid of algae, it is not recommended because it is an agent that is harmful to fish and grass.

        6, inhibiting growth:It can be safer to reduce light, feed less, and step up water changes, the downside is that it will take longer.