The recognition of potassium persulfate and the application of genuine potassium hydrogen persulfate composite salt in aquatic products have shown an explosive trend. However, the problem of authenticity still troubles most distributors and farmers. At the same time, "counterfeit" products are not completely ineffective, and even better than genuine ones in terms of blackening. This has caused most customers to be unable to distinguish and even misled. 

Different contents of potassium persulfate have different effects: 50% is mainly used in powder form for sterilization and algae killing

1. If it is made into tablets and sinks to the bottom of the water, it will react with the bottom of the pond, wasting a large part of the disinfection effect.   

2. The cost is too high, and if 50% of the product is used to improve the bottom, I estimate that few farmers can afford it.   

3. If it is only used to improve the bottom, there is no need to use such a high content. At present, the most commonly used method for bottom modification is 10% potassium hydrogen persulfate composite salt.