CATDOLL : CATDOLL: How can we improve the water quality environment for bighead carp farming?

1. How to improve the water quality environment for bighead carp farming?

Bighead carp is a filter-feeding fish. The general small-scale family farming model can fertilize the water to cultivate bait, ferment animal manure and then spray it throughout the pond, or dissolve chemical fertilizers in water and then spray it throughout the pond.

2. How to improve the water quality for breeding silver arowana?

1. Change the water once a week in summer, about 50% of the water should be changed. If the water is too dirty, change more. Change it every two weeks in winter. But be sure to pay attention to the water temperature.

2. Water quality. If you feed too much, it will grow fast, but you will have to change the water more frequently, so control the amount of food you feed. Generally, you can just visually estimate it, and the requirements of silver dragons are not high.

3. Water temperature. There is no way to lower the temperature in summer. They eat a lot and poop a lot, and they have to change the water. It's troublesome. Haha. In winter, just control the temperature at 22 degrees. Changing the water once every two weeks is enough.

4. Then there is the issue of the size of the tank. I have only two fish in a 1.5-meter tank, and I don't need a scavenger. The filter is on 24 hours a day, and the water is very clear. When the water changes color a little, change the water, and the time period is as I introduced above.

3. Can EM bacteria improve the water quality of fish ponds?

Hello, I’m Qinggege. EM bacteria is a very good biological agent. Let me answer this question below!

EM bacteria is a powerful mixed bacterial agent. EM bacteria are sugar-loving. Sugar is the key to the reproduction of EM bacteria. A high content of EM bacteria means that the culture medium is nutritious and can reproduce more beneficial bacteria. Brown sugar and white sugar are both extracted from sugarcane or beets. The production process of brown sugar is slightly simpler than that of white sugar. It contains more glucose and cellulose, releases energy faster, and has a higher absorption rate, making it more suitable for use with EM bacteria.

The main methods of using EM bacteria in fish pond farming are as follows:

1. When encountering hypoxia, floating head, mild poisoning, or disease, use 1 kg of EM bacteria and add 500 times the pond water to sprinkle directly, or dissolve an equal amount of brown sugar, add 10 times the water, then add the EM bacteria solution, stir, seal and ferment for 12-48 hours, then dilute 200-500 times and sprinkle throughout the pond. It will return to normal in 3-5 hours, and the water quality requirements for fish farming can be met in 4-7 days.

2. Preventive use: Spray the whole pond with the above method, 1 kg per mu, in late April, early June, early to mid-July, August and September, 3-4 times. Each time, the water body can maintain the fish farming water quality requirements for 30-50 days, the dissolved oxygen can be increased by more than 75% in 15 days, and the ammonia nitrogen can be reduced by 57% in 35 days.

3. Deworming and disease prevention: During the outbreak period or in the initial stage of stocking, you can first use conventional drugs and water disinfectants to kill insects and sterilize. After the drug properties disappear, add 1-4% EM bacterial solution according to the feed dosage or spray it into the feed. Feed it continuously for 4-7 days and sprinkle it in the water. This can adjust the micro-ecological system inside and outside the water and fish body, improve the immunity of fish, shrimp and crabs, and ensure that no major diseases occur in the future.

4. Promote growth: For special aquaculture such as green shrimp, swamp shrimp, river crab, perch, pufferfish, rice field eel and American frog, add 1% EM bacterial solution to the feed amount when feeding fresh feed; dilute 2-3% EM bacterial solution appropriately when feeding pellet feed, spray it on the pellet feed and feed immediately; feed raw grains such as soybean, soybean meal, wheat, corn, etc., soak 3-4% EM bacterial solution with an equal amount of brown sugar and water, seal it for 16-24 hours before feeding. Using this method, the water body does not need to be sprayed with EM bacterial solution all the time, and no other drugs need to be used, which can significantly improve the growth rate and recapture rate of aquatic products.

5. Greenhouse farming: For overwintering or parent cultivation in greenhouses, such as soft-shelled turtles, pufferfish, river crabs, swamp shrimps and sturgeons, 3-4% EM bacterial solution can be added to pellets in closed lightless greenhouses, or added by mixing, spraying, soaking, etc. Plastic greenhouses can be sprayed on the water after changing the water, with a dosage of 0.05%-0.1% each time, and added to the feed at the same time. This method can reduce the number of water changes, prevent and treat diseases, and promote growth.

6. During the transportation and temporary rearing of seedlings, adding 0.05%-0.1% EM bacterial solution to water or mixing 3-4% EM bacterial solution in food for feeding can enhance physical fitness, prevent external injuries, and improve transportation survival rate. During the cultivation of fish, shrimp, crab, turtle and other seedlings, sprinkling 0.01% in the water, mixing an appropriate amount of EM bacterial solution in bait such as egg yolk, soy milk and minced fish meat can greatly improve the survival rate and growth rate.

7. During the breeding period of fish, shrimp, crab and other seedlings, dilute it with 0.02%-0.03% and sprinkle it in the return water, or use drip irrigation to slowly flow into the water inlet channel, which can keep the water clear, increase the starter bait of fish, shrimp and crab seedlings, and improve the hatching survival rate. Adding 1-4% EM bacterial liquid to feed during the parent intensive cultivation period can enhance the physical fitness of aquatic products and increase the egg carrying capacity and hatching rate of aquatic products.

8. When breeding fish, shrimp, crabs, eels, etc. in flowing water such as cages and net enclosures, you can soak foam plastic in 20-30 times diluted EM bacterial solution for 1-2 days to make a biofilm, and hang it in the middle of the pond water to gradually release the EM bacterial solution. Change it every 10-15 days to keep the water clear. Combined with feed mixed with EM bacteria, it can increase the recapture rate and growth rate of aquatic products.

9. Manure fermentation: Use EM bacteria solution, brown sugar, and manure in a ratio of 1:1:300-500, mix them in a sealed fermentation for 7 days, and then put them into the pond. It can quickly multiply zooplankton and can be used for breeding silver carp, crucian carp, and shrimp and crab nursery ponds, which can save a lot of costs.

The above is the use of EM bacteria in fish pond farming. I hope it can be helpful to everyone! I wish your aquatic products can grow healthily!

4. What can be used to purify water for aquaculture fish?

Physical, chemical and biological methods can be used.

5. Practical methods to improve water quality How to improve the water quality in the fish tank?

1. Circulation filter system, which is the kind that pumps water on one side and releases water on the other side. Do not use wall-mounted ones, as they are not very effective. As for the power, you can tell the aquarium store the size of the fish tank and they will recommend it. The operation time of the filter system varies according to the number of fish, at least 5 hours a day.

Second, the bottom of the tank should be covered with 3-5 cm coarse sand or pebbles to hold bacteria and fish excrement. Bacteria will decompose fish excrement. Plant hard water plants, such as sword grass and water fig, so that the nutrients decomposed by bacteria are absorbed by the water plants. In this way, the water quality will not be eutrophic, and bacteria, pathogens and algae will not multiply and become a disaster. It can reduce the work of maintenance and prescription.

3. The lighting should be on for 5 hours a day to allow for the photosynthesis of aquatic plants.

6. Which fish have lower requirements for water quality?

Master, national master

Super durable

Attached is what I raised

7. How to improve poor water quality?

Method 1: Softening method. The typical representative is the water softener. It can remove or reduce the hardness of water and belongs to softening water quality, but it cannot improve the water quality.

Method 2: Distillation. Boil the water, collect the steam, cool it and condense it into liquid. Distilled water is extremely safe to drink, but it cannot remove volatile substances in the water.

Method 3: Boiling. The combination of water dispensers and bottled water is the most common. Boiling is the most widely used method besides using a water purifier. Boiling tap water before drinking can kill bacteria, but it cannot remove some chemicals and heavy metals.

Method 4: Ozone and ultraviolet disinfection. These methods can only sterilize, but cannot remove heavy metals and chemicals in the water. The bodies of killed bacteria still remain in the water and become pyrogens.

Method 5: Electrolysis: The water is first purified and then activated by electrolysis to make it suitable for drinking.

Method 6: Activated carbon adsorption method. It is represented by single-stage or bipolar filtration water purifiers. There are granular activated carbon, silver-infiltrated activated carbon, and fiber activated carbon.

8. Which fish are suitable for releasing into the wild in Suzhou to improve water quality without causing biological invasion?

In theory, any fish in the school pond is not considered an invasive species, man. Unless it is released into wild waters or public waters and causes damage to the ecological balance, it is considered an invasive species. So don't worry too much about what fish to release without causing biological invasion.

Fish that can improve water quality... To be honest, no. But you can put some fish with economic or ornamental value, preferably hardy ornamental fish (cold-water fish such as grass goldfish and koi).

Or edible hardy fish (tilapia, crucian carp, silver carp, etc., crucian carp is the first choice)

Personally, I think that improving water quality does not depend on fish, but on aquatic plants. The density of aquatic plants should be high, and try not to use aquatic plants that reproduce quickly. Use lotus and the like, which have excellent nitrogen fixation and water purification effects. As long as aquatic plants are well maintained and the water body self-renewal system is formed, the water quality will naturally improve.

Be careful, control the number of fish.

Hope you can adopt it.

9. What are the requirements for water sources and water quality for major farmed fish?

What are the requirements for water quality when raising fish? I think everyone probably knows the old saying that if the water is too clear, there will be no fish, so it is important to choose a good site and area. Now I will tell you a few points based on my own situation.

First, clarify your needs and adapt to local conditions. First, clarify your needs according to your own situation, find out how much money you have to build and plan fish ponds, and find out what kind of fish you need to breed, because fish have different requirements for water quality. Some fish have strong resistance and have average requirements for water quality, but some fish have very strict requirements for water quality, so choosing quality is also very important. Adapt to local conditions. If you want to breed near your home, then choose the variety or adjust the water quality according to the conditions of your own pond.

Second, pay attention to the direction, protect the water source, and after clarifying the breeding species and area, you should pay attention to the requirements and habits of farmed fish for water quality according to the situation, and protect and improve the water source in time to prevent sewage from flowing into the fish soup and causing water pollution.

Third, clean regularly and prioritize prevention. When raising fish, use feed or vegetable straw, etc. After putting it into the fish pond, the remaining waste residue must be cleaned up in time to avoid long-term accumulation, chemical reactions such as bubbles, and water pollution. Take preventive measures to ensure that the water quality remains in good condition.

Fourth, manage carefully, manage scientifically, conduct regular inspections, and make timely adjustments. There may be various problems in the breeding process, and we may not have thought of ways to deal with some of them. Therefore, we must cultivate carefully, use scientific management methods, and regularly monitor water quality. If there are any problems, we should deal with them in a timely manner. We should also continue to learn breeding methods, improve our own breeding level, ensure water quality safety, and protect our own interests. This is my point of view, and I hope it will be helpful to everyone. Thank you.

10. How to improve the water quality of the fish tank?

Ornamental fish

If you want to keep your ornamental fish healthy in the tank, then water quality is very important. How should we deal with the water quality for raising ornamental fish?

We can achieve water cultivation by creating a suitable space for nitrifying bacteria according to their characteristics. For example, the water fairy sold on the market (you can go online to compare pictures) is the best and most effective nitrifying bacteria culture device, which can be done with just a water fairy and a small air pump. In the early stage, you can add nitrifying bacteria sources, and then you can basically do it once and for all. Usually we see filtering devices, such as filter barrels, upper filters, back filters, and side filters. No matter what kind of filtration, their filtering is only a surface phenomenon, and the real purpose is to cultivate nitrifying bacteria. Regarding ultraviolet sterilization, it is used to kill algae or other bacteria. Its light can also kill nitrifying bacteria, so novices should use it with caution.