1, species differences: bass and guppy are two different fish, their biological characteristics and growing environment are different. The meat of perch is more tender and tastes better, so it is more expensive.

2. Cultivation cost: The cultivation cost of bass is relatively high. Bass requires cleaner water quality and finer farm management, so it is more difficult to farm and the cost is higher. While the culture cost of guppy is relatively low and the price is also relatively low.

3, market demand: the market demand for sea bass is higher, especially in some high-end catering market, the demand for sea bass is higher. The market demand for guppy is relatively small and the price is relatively low.