2. I like running water with good water quality and sand water with high oxygen content.
3. I like the waters where humus is easy to gather microorganisms and plankton.
4. Fishing group preparation: You should be prepared to catch big fish. The fishing group used should not be too small for big fish, but too big for small fish. Should use "heavy equipment".
5. Bait: In the case of small miscellaneous fish, hard bait such as tender corn kernels, tender wheat kernels and granular feed can be used as bait.
6. If there are few small fish making hooks, you can use vegetarian soft bait.
7. Patience: To catch big fish at the bottom of a big reservoir, the first condition is to have patience, to be able to bear loneliness, and to have patience to wait, rely on, keep and grind.