Vallisneria, commonly known as water leeks. In the rooted mud, the stems and leaves are completely submerged in water, and they only emerge from the water during flowering. Located at a depth of about 1 meter, when the pool water is transparent, it can be planted deeper, reaching a maximum depth of 6 meters underwater, and will soon die after water loss. There are three main advantages to growing Vallisneria in the mud loach pool: First, Vallisneria creates a sheltered habitat for the loach. The second is the tender leaves of Vallisneria and the large number of microorganisms that reproduce them, which provide excellent natural bait for loach. Third, Vallisneria can absorb bottom manure and purify water quality. Seedlings of Vallisneria: When the water temperature is 18°C ​​to 20°C, the grass seeds are first packed in a woven bag, soaked in water for 7 days, picked up and dried in a bag for a day, and then soaked in water for a day to remove grass seeds. , Using a washboard to muddy, dilute 50 grams per acre to dilute the water. Evenly spill the water on the course. During germination, when the water depth is about 10 centimeters, seedlings can be seen in 30 days, and the coverage rate is over 80%; Seedlings can be seen in the area from 40 to 50 days, and the coverage rate is above 75%. Keep a proper amount of leucorrhea in the rearing pond and don't plant it. Normally, seedlings are grown directly into stocking methods. Before stocking, 3-5 cm seedlings are soaked with 3%-4% saline for 5-10 minutes before stocking. The stocking density is 20-30 per square meter. In the end, the bait has fishmeal, animal viscera, pig blood powder, silkworm cocoon powder, etc. Botanical bait, with bait by 50% wheat flour, 20% soybean meal, 10% rice bran powder, 10% fish meal or silkworm meal, 7% blood meal 3% Yeast powder composition. Mixed with bait and water into a soft mass and put it on the water table. According to the temperature adjustment of animal, plant food and the amount of feed, water temperature below 20 °C, plant foods accounted for 60-70%; water temperature 20 °C -30 °C accounted for 50%, water soft 23 °C -28 °C, accounting for 30% -40 %. Usually two times a day feeding, 70% vote in the morning, 30% vote in the afternoon, the water temperature is higher than 30 °C or less than 10 °C, should be a small vote or stop the vote. Regularly disinfect with quicklime, bleach, etc.
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