The feeding method is as follows:
1. Generally, 2 mu ~ 10 mu is suitable for ponds. The bottom of the pond should be flat, and soft clay is the best substrate. The bottom of the pool should be higher than the low tide line in the sea area, which is convenient for drainage and sunning. Dig a cross ditch in the middle of the pond. The water intake and drainage of the pond should be separated and connected to the central ditch. The bottom of the pond is inclined from the intake gate to the drainage gate, and the bottom of the drainage gate should be about 20 cm lower than the bottom of the intake gate. Set up escape prevention facilities around the pond.
2. Half a month before the swimming pool is cleaned, disinfected and stocked, drain the pool water first, and then dry the lawn for a few days until the lawn surface cracks. Then spray 75 kg ~ 100 kg of quicklime or 30 ppm of bleaching powder (32% available chlorine) on the whole pond for disinfection to eliminate pests.
3. Apply fermented chicken manure or pig manure 20-30 kg, rice bran 15 kg, algae auxin, microorganisms, oil bran, etc. To every acre of pond. Then seawater with a specific gravity of1.010 ~1.01.065438 is suitable for entering 15 cm. After 3 ~ 5 days, benthic algae gradually proliferate and form algae beds. Brown diatoms and green algae are the best algae beds.
4. After sowing and cultivating benthic algae, sowing can be carried out. The seedlings mainly come from natural seedlings collected in the sea area. Choosing fry requires complete fins, scales, no mechanical damage and strong vitality. The seedling density is controlled at 5000 ~ 7000 plants per mu.
5. Cultivation and management After seeding, the water depth should be kept at about 10cm ~ 15cm, and the water quality should be clear, so that sunlight can be transmitted to the bottom of the pond, which is convenient for algae photosynthesis and accelerates the reproduction of benthic algae. It is necessary to prevent fierce fish, birds, crabs and conchs from harming mudskippers.