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Zhengzhou Yudan Biotechnology Co., Ltd. is a high-tech enterprise focusing on aquaculture improvement, integrating R&D, sales and technical consulting. It was funded by Henan Fisheries Research Institute and Henan Fisheries Technology Promotion Center, initiated by industry leaders and supported by a team of domestic industry experts.

It is an aquaculture online service company that connects aquaculture farmers around the world with Chinese aquaculture improver manufacturers and experts through social media.

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Ammonia nitrogen in ponds

The main causes of excessive ammonia nitrogen in fish ponds include water source pollution, bottom soil pollution, fertilizer pollution, decomposition of leftover bait, unreasonable feeding, bottom soil deterioration, sudden weather changes, and external pollution.

Pond algae control

The “green tide” caused by blue algae in fish, shrimp and crab breeding ponds can seriously disrupt the nutrient balance of the water body, cause water quality to deteriorate, deplete oxygen in the water, and cause frequent gastrointestinal diseases in aquatic animals, leading to death.

Fish pond water turns black

The blackening of fish pond water may be due to the following reasons: 1. Accumulation of organic matter: The accumulation of organic matter such as feed residues, fish feces, and dead plants and animals can cause the water to turn black.

Pond water turns green

Eutrophication is one of the common causes of green water in fish ponds, which is usually manifested as green water, thick water, excessive algae, low pond water transparency, etc. To solve the problem of green water, the combination of multiple aquatic bacteria species is more effective.

Fishpond water is turbid

Sudden weather changes, too many wild fish in the crab pond, and insufficient feeding may all cause pond water to become turbid, usually appearing as muddy water. To address the problem of turbid fish pond water, a variety of aquatic bacteria species can be used in a reasonable combination,

Pond bottom overturning

Pond bottoming is a common aquaculture problem, mainly due to excessive accumulation of organic matter at the bottom of the pond, which leads to deterioration of water quality. The following are ways to deal with pond bottoming: 1. Improve the bottom environment,

池塘青苔怎么处理

Pond Moss Treatment

The main methods for treating pond moss are: manual salvage, use of drugs, fertilizer and water regulation, changing the water level, drying the field to kill, and prevention. For moss with a small number and concentrated distribution, manual salvage can be carried out directly.

Fish pond pH is too high

Are you troubled by the high pH value of the fish pond? 1. When the pH value of the water is too high, it will corrode the gill tissue of the fish and cause the egg membrane of the incubating fish to dissolve prematurely, causing the embryos to break out of the membrane prematurely and die in large numbers.

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