1, compound fertilizer: compound fertilizer is rich in amino acids and trace elements, which can improve the nutrient content in shrimp ponds and improve water quality conditions. It is an effective fertilizer and water choice.

2. Bio-fertilizer: Bio-fertilizer is a mixture of microbial agents and organic matter, which has the characteristics of high efficiency and environmental protection. It can promote the decomposition of organic matter and nutrient release in shrimp ponds and improve the water quality environment.

3. Fertilizer: Fertilizer, including nitrogen fertilizer and phosphate fertilizer, is a quick-acting fertilizer. It can provide nutrients such as nitrogen and phosphorus needed in shrimp ponds and promote the growth and development of shrimp.