How to raise koi well
Koi is a popular ornamental fish that is not only colorful but also has auspicious meanings. However, to raise koi well, you need to master scientific methods and techniques. The following is a summary of hot topics and hot content on koi farming in the past 10 days across the Internet to help you better care for koi.
1. Basic requirements for koi farming
Koi has high requirements for water quality, feed and environment. The following are the basic conditions for raising koi:
| project | Require |
|---|---|
| water quality | pH value 6.5-8.5, ammonia nitrogen content less than 0.02mg/L, dissolved oxygen ≥5mg/L |
| water temperature | The suitable temperature is 20-25℃, not lower than 5℃ in winter |
| feed | Protein content ≥30%, can be combined with vegetables and live bait |
| illumination | 6-8 hours of natural light every day, avoid exposure to the sun |
2. Daily management of koi carp
1.Water change frequency: Change 1/3 of the water every week to keep the water clean. When changing water, pay attention to the temperature difference not exceeding 2℃.
2.Feeding Tips: Feed 2-3 times a day, and it is advisable to finish it within 5 minutes each time. Avoid overfeeding which can lead to deterioration of water quality.
3.disease prevention: Check the fish body regularly and isolate and treat any abnormalities promptly. Common diseases include white spot disease, fin rot, etc., which can be treated with salt baths or medications.
| common diseases | symptom | Treatment |
|---|---|---|
| white spot disease | White dots appear on fish body | Raise the temperature to 30°C and add salt or white spots. |
| fin rot | Fish fins rot and turn white | Yellow powder medicated bath to improve water quality |
| Gill disease | Swelling of gill filaments and difficulty breathing | Potassium permanganate medicated bath, oxygenation |
3. Koi breeding techniques
1.breeding season: Koi usually breed in spring (April-June), and the water temperature needs to be stable above 18°C.
2.Broodstock selection: Choose 1-3 year old fish with strong body shape and bright colors as broodstock.
3.spawning management: Provide aquatic plants or artificial spawning beds. After the female fish spawns, remove the broodstock promptly to avoid swallowing fish eggs.
| breeding stage | Things to note |
|---|---|
| before spawning | Strengthen nutrition and keep water clean |
| incubation period | Control the water temperature at 20-22°C and avoid direct sunlight. |
| Fry stage | Feed sewage water or egg yolk water to maintain sufficient dissolved oxygen |
4. Selection of koi species
There are many varieties of koi, and different varieties have different breeding difficulties and ornamental values. Here are the characteristics of several popular koi species:
| variety | Features | Breeding difficulty |
|---|---|---|
| Red and white koi | Red and white, classic variety | medium |
| Taisho three colors | Red, black and white intertwined | higher |
| Showa three colors | Mainly black, with red and white accents | high |
| golden koi | The whole body is golden, which means wealth | Low |
5. Common Misunderstandings in Koi Breeding
1.overfeeding: Will cause water quality to deteriorate and cause diseases.
2.Ignore the filtration system: Powerful filtration is key to maintaining water quality.
3.Improper mixing: Koi should not be mixed with aggressive fish.
4.Change water frequently: Sudden large water changes can cause stress in koi.
Through the summary of the above content, I believe you have a more comprehensive understanding of how to raise koi well. Scientific breeding methods and careful management are the guarantee for the healthy growth of koi. I wish your koi fish will thrive and add color to your life!
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