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Green algae in a koi pond, to be or not to be? (above)

Article source: Ollies (Guangzhou) Recreation and Sports Equipment Co., Ltd Popularity: (Click 1,769 times) Service Hotline: (020)82686289

Since childhood, we have been taught to protect the forests and care for flowers and plants because the big forests are the lungs of the earth, and the trees can provide a lot of oxygen for the survival of human beings, but is it really the flowers, plants and trees that feed the creatures on earth?

The Earth's atmosphere was devoid of oxygen at the beginning of its formation, and the primitive atmosphere was reductive and full of gases such as methane and ammonia.

It is estimated that approximately 70-80% of the oxygen in the air is produced by marine plants. Since many marine plants are theoreticallyare all algae, thus making seaweed the single plant species that supplies us with the most oxygen to breathe.

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There are so many different types of algae that for the most part it sits at the lowest end of the food chain, and it can be argued that without algae, there would be no fish, let alone humans.

Unfortunately, the ornamental fish players who have to deal with algae on a daily basis always have to shout about it.

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There are also many fishermen who believe - it is better to have green algae in the pond, so that the green water is good for koi coloring.

Are you sure green algae is really good for fish?

There are many unfavorable aspects of green algae. Due to limited oxygen and nutrients, it is easy to cause dead algae, which will rapidly decompose a large amount of harmful substances such as nitrite and hydroxylamine, which are fatal to fish.

Green algae - phytoplankton

The green algae that grows in fish ponds is actually phytoplankton.

Look at water containing green algae through a microscope and you'll see countless green phytoplankton, also known as chlorella. These green naturals are organs called chlorophyll, where the phytoplankton use sunlight to photosynthesize.

Why does it grow in a fish pond?chlorellaAnd?

With the gradual increase of nutrients (phosphorus, nitrogen, etc.) in the water in the fishpond, sunlight, conditions are met these phytoplankton frequently photosynthesize and absorb the abundant nutrients in the water and the reason for the proliferation.

If green algae plankton increase

When there are about 100 green algae plankton per milliliter of water in a fish pond, the water appears to be clear; however, if there are more than 10,000 green algae per milliliter of water, the water turns green.

When the water is rich in nutrients and full of sunlight, in a few days, 100 plankton will increase to tens of thousands. So, you can't rest assured just because the water is clear, it may turn green in a flash.

Cons of Chlorella

How does growing green algae in a fish pond affect water quality?

As I said before, green algae undergoing photosynthesis produces a lot of oxygen and the concentration of dissolved oxygen in the water rises. So this should be good for the koi.

However, plants also respire while photosynthesizing, which means that the oxygen released by respiratory photosynthesis is also consumed.

On sunny days, the concentration of dissolved oxygen in the water rises as the phytoplankton produce more oxygen through photosynthesis than they consume through respiration.
When the sun goes down, there is a 360° shift in what happens during the night.

Phytoplankton cannot photosynthesize at night and thus cannot produce oxygen, which is consumed by respiration. As a result, the amount of dissolved oxygen in the water drops sharply. At dawn, the amount of dissolved oxygen in the water reaches a minimum.

That is to say, the pool with green algae, every night koi are in a state of hypoxia, from a deeper level of hypoxia will make nitrifying bacteria reproduction is limited, even if there is a strong filtration system, biochemical filtration effect will be greatly reduced.

Inhibiting green algae growth is more important than sterilizing it

Some people say that if green algae grows, you can add algaecide to make them go extinct.

But be careful, the dead green algae will rot and cause water quality deterioration. At this time, the dead algae should be filtered out or water change should be carried out in time, otherwise the ammonia nitrogen will exceed the standard, beware of poisoning!!!! And the agent will surely inhibit the growth of nitrifying bacteria and is not friendly to fish, which is also more cumbersome, so you should have to consider how to inhibit the growth of green algae is the best policy.

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Green algae in a koi pond, to be or not to be? (above)

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