What pool is the best for raising loach? It is good to raise loach in cement pool.
Cultivation techniques of loach in cement pond;
I. Facilities construction
1. Cement pool
Cement pools can be built underground, above ground or semi-above ground. It is best to use 24cm brick wall for the pool wall, "concrete" for the bottom of the pool first, and then a layer of 5- 10cm concrete is poured, and the inner and outer walls and bottom surface are polished with cement. According to the topography, it can be rectangular or circular, with an area of about 50-200m2, a pool depth of 1.0- 1.2m, and a water depth of 0.5-0.7m The rectangular pond is convenient for building and pulling nets, and the bottom of the pond should have a certain inclination (2%-3%) to the short side. The circular pool has strong pollution discharge capacity, and the center of the bottom surface is the lowest place in the whole pool. Because loach avoids light, it is necessary to put a sunshade net on the cement pool to cool down in hot summer.
2. Drainage and irrigation facilities
The requirement of irrigation and drainage facilities is to be able to drain the pool water by itself and replenish new water in time. A drain with a diameter of 10-20cm is set at the lowest part of the pond, and a barrel-shaped filter screen with a diameter of 60-80cm and a height of 1.0- 1.2m is covered on it, which not only prevents the drainage from being affected by dirt adsorption, but also does not harm the fish. A movable vertical circular tube can be arranged at the water outlet outside the pool, and the pool water is discharged from the upper part of the pipeline. The height of the pipeline is the depth of the pool water, and the height of the pipeline can be designed as required. Pull the pipe out of the drain pipe and drain the pool water. The water inlet should be higher than the water level of the pool. If the water source is surface water, the water inlet should be covered with a filter. If it is groundwater, there should be an aeration process when adding water, which can improve the temperature and oxygen content of groundwater. The mesh of the filter screen is 2mm.