1, Output increase: With the continuous improvement of culture and fishing technology, the output of frozen sea cucumber and grouper is also increasing, and the supply exceeds demand, which leads to the price decrease.

2. Seasonal supply: In some seasons, the harvesting and transportation of frozen sea cucumber and grouper are less restricted, which leads to their increased market supply and relatively low prices.

3. Regional differences: There may be differences in the prices of frozen sea cucumber and grouper in different regions, because their origin, transportation costs and other factors are different.

4. Variety and quality: The prices of different varieties of frozen sea cucumber and grouper may be different, and the quality differences of products will also affect the prices.