Why do we need to raise water before fish farming in ponds

Have you ever invested in the bottom of your aquaculture pond?The bottom of the pond is the "energy bank 能量银行" of the water body, as well as the "pollution source 污染源" and the "hotbed of germs 细菌的温床". The fish-raisers all know the saying "fish-farming first raises water, however, it is not necessarily that many people know about" raising water first and raising the bottom ". This sentence shows the key role of pond bottom in aquaculture. If the bottom is good, the water quality is naturally good; the water quality is good, but the bottom quality is not necessarily good. Water body is the environment where fish and shrimp grow, survive and live. However, the interaction between pond bottom and water can strongly affect the water quality. Therefore, if we want to keep water well, we must start with the improvement of pond bottom, we must pay full attention to the management of pond bottom. In order to make the pond culture develop sustainably and protect the water and soil resources of the pond reasonably, it is necessary to improve and repair the deteriorated bottom of the pond.你曾经投资过你的养殖池塘的底部吗?池底是水体的“能量库”，也是“污染源”和“病菌的温床”。养鱼的人都知道“养鱼先提水”这句话，但知道“先提水，先提底”的人并不多。这句话说明了池塘底部在水产养殖中的关键作用。底子好，水质自然好;水质好，但底质不一定好。水体是鱼虾生长、生存和生活的环境。然而，池底与水的相互作用会对水质产生强烈的影响。因此，要想保水好，就必须从改善池底做起，必须充分重视池底的管理。为了使池塘养殖可持续发展，合理保护池塘的水土资源，有必要对恶化的池底进行改善和修复。

The quality of the bottom directly affects the water quality. The quality of the water is the manifestation of the bottom. Usually people know the change of the bottom through the change of the water quality. Improving the bottom quality is the basis of improving the water quality. The pathogen grows and reproduces through the organic pollution at the pond bottom, and then spreads through the water body. Therefore, "keeping water first and raising the bottom" is the real "keeping fish first and raising water first".底部的质量直接影响到水质。水的好坏是底的表现。通常人们通过水质的变化来了解底层的变化。改善底质是改善水质的基础。病菌通过池底的有机污染生长繁殖，然后在水体中传播。因此，“先留水，先提底”才是真正的“先留鱼，先提水”。

I. the deterioration of the bottom of the pool1、池底的变质

The deterioration of the bottom of the pond generally shows that the bottom mud is black and the water body is smelly. In reality, many fishponds can't cure the disease for a long time or the water quality is poor, but they can't adjust well all the time. Maybe the problem lies in the "bottom", because some fishponds haven't been cleared for many years or even more than ten years, or the fish stocking does not match with the bottom fish (such as carp and crucian carp) and filter-feeding fish (such as carp and Bighead), all kinds of reasons can be found, but it is not particularly noticeable.池底变质一般表现为底泥发黑，水体发臭。现实中，很多鱼塘长期治标不治本，或者水质较差，但却始终不能很好地进行调整。也许问题出在“底”，因为有些鱼塘多年甚至十几年没有清场，或者放养的鱼与底鱼(如鲤鱼、鲫鱼)和滤食性鱼(如鲤鱼、鳙鱼)不匹配，各种原因都可以找出来，但并不特别引人注目。

If fish grow in an environment of hypoxia or poor bottom for a long time, their activity ability will obviously decline and seriously affect their growth. Organic matter in the bottom will decompose in large quantities when the water temperature rises, which will consume a large amount of dissolved oxygen in the water and produce various toxic and harmful substances. In light, it will affect the growth, and in severe cases, it will lead to anoxia flooding the pond and even death. Regular use of water quality regulator (such as quick lime) and bottom-modified products to increase the bottom layer of dissolved oxygen, which can achieve fresh water quality, clean bottom, sufficient dissolved oxygen, and promote the normal growth and development of fish.如果鱼类长期生长在缺氧或底层不良的环境中，其活动能力会明显下降，严重影响其生长。当水温升高时，底部的有机物会大量分解，消耗水中大量的溶解氧，产生各种有毒有害物质。光照下会影响生长，严重者会导致池塘缺氧泛滥，甚至死亡。经常使用水质调节剂(如生石灰)和底改性产品，增加底层溶解氧，可达到水质新鲜、底面清洁、溶解氧充足，促进鱼类正常生长发育。

II. Reasons for deterioration of pool bottom2。池底劣化的原因

The root cause of the deterioration of bottom material lies in the continuous accumulation of organic matter. The deterioration of bottom material produces hydrogen sulfide, ammonia gas and other toxic gases, which are easy to cause the deterioration of water quality in the water body. At the same time, a large amount of excessive organic matter provides nutrition for pathogenic bacteria in the bottom mud, and pathogenic bacteria take the opportunity to reproduce in large quantities, which is easy to aggravate the incidence probability and degree of fish.底层物质劣化的根本原因在于有机质的不断积累。底料变质产生硫化氢、氨气等有毒气体，易造成水体水质恶化。同时，大量过量的有机物为底泥中的致病菌提供了营养，致病菌趁机大量繁殖，容易加剧鱼类的发病概率和程度。

1. Incomplete clearing of ponds, including improper use of drugs in clearing ponds, insufficient time for drying or freezing ponds, etc.1. 池塘清理不彻底，包括在清理池塘时使用药物不当，干燥或冷冻池塘的时间不足等。

2. Excessive accumulation of organic matter at the bottom of the pond is caused by reasons such as redundant and wasted feed feeding, fertilizer not used up by plankton, residual animal and plant corpses, fish feces, rot of aquatic plants and Moss, etc, they all accumulate at the bottom to form thick organic pollutants. The "oxygen debt" at the bottom intensifies, and these organic matters are propagated and decomposed by anaerobic bacteria at the bottom to produce toxic substances, causing the bottom to stink, which will cause great harm to the breeding animals.2. 池塘底部有机物的过量积累是由于饲料喂养的冗余和浪费、浮游生物的肥料未用完、残留的动植物尸体、鱼粪、水生植物和苔藓的腐烂等原因造成的，它们都积聚在底部，形成厚厚的有机污染物。底部的“氧债”加剧，这些有机物被底部的厌氧菌繁殖分解，产生有毒物质，造成底部发臭，对养殖动物造成极大危害。

3. A large number of frequent filling and changing water (especially muddy water and heavy rain wash muddy water into the pond), a large number of chemical fertilizers and so on cause the bottom mud to be thickened, the bottom to be hardened, the pond fertilizer retention effect is weakened, it is easy to cause water quality problems such as muddy water and difficult fertilizer.3. 大量频繁充换水(尤其是泥水和大雨冲刷泥水进入池塘)、大量化肥等造成池底泥浆增厚、池底硬化，池肥滞留效果减弱，容易造成泥水难肥等水质问题。

4. The depth of the aquaculture water is out of line with the ability of oxygenation. The aquaculture water is too deep, and the amount of oxygenation in the water is not enough to meet the requirements, which causes the long-term shortage of dissolved oxygen at the bottom of the water and the corruption and odor at the bottom. The installation position of the aerator is improper, and the installation of the aerator fails to form an angle with the wall of the pool, resulting in a large number of dirty things being brought to the corner of the pool to form a dead angle, and the bottom layer will be smelly easily after a long time.4. 养殖水体深度与氧合能力不符。养殖水体过深，水中的氧合量不足以满足要求，造成水体底部溶解氧长期不足，底部腐败发臭。曝气机安装位置不当，曝气机安装未能与池壁形成角度，导致大量脏东西被带到池角形成死角，时间久了底层容易发臭。

5. Excessive and fertile sludge, coupled with long-term unclean ponds, incomplete clean ponds, no exposure to the sun or freezing the bottom of the ponds, etc. are also the causes of bottom problems.5. 污泥过量肥沃，再加上长期不清洁池塘、不完全清洁池塘、未晒太阳或池底结冰等，也是造成池底问题的原因。

6. The stocking density is high, the feeding amount is large, and the corresponding residual bait and feces are also large. It may make the pond lose its ecological balance gradually, the self-purification function of the bottom of the pond is lost, and the bottom is deteriorating day by day.6. 放养密度高，取食量大，相应的残留饵料和粪便也大。它可能使池塘逐渐失去生态平衡，池塘底部的自净功能丧失，池底日益恶化。

If you want to know how to cultivate pond bottoms and optimize water quality 水的质量, you can contact us 联系我们 to recommend probiotic aquaculture water products that are suitable for your fish fry如果您想了解如何培育池底，优化水质，可以联系我们为您推荐适合您的鱼苗的益生菌养殖水产品