How to raise koi fish in aquarium
Koi fish has become one of the most popular ornamental fish among aquarium enthusiasts due to its bright colors and elegant swimming posture. However, if you want to raise koi fish well, you need to master scientific feeding methods. This article will combine the hot topics and hot content on the Internet in the past 10 days to give you a detailed introduction to the raising techniques of koi fish in aquariums.
1. Basic introduction to koi fish
Koi fish is a variant of carp, native to China, later introduced to Japan and widely cultivated. They have high water quality requirements and are suitable for keeping in large aquariums or outdoor ponds.
| Variety | Features | Suitable water temperature |
|---|---|---|
| Red and white koi | Red and white, bright colors | 18-25℃ |
| Taisho three colors | Red and black stripes on white background | 18-25℃ |
| Showa three colors | Red and white markings on black background | 18-25℃ |
2. Selection and layout of aquariums
The aquarium you keep koi fish in should have enough space and a good filtration system. Here are the key points for aquarium selection:
| aquarium size | Filtration system | Decorating suggestions |
|---|---|---|
| At least 100 liters (single fish) | External filter or bottom filter | Avoid sharp decorations and place driftwood |
| Each additional fish requires an additional 50 liters | Requires physical and biological filtration | Plants such as water ficus and other gnawing-resistant aquatic plants can be planted |
3. Water quality management
Water quality is a key factor in the success of raising koi fish. The following are the key points of water quality management:
| parameters | ideal range | Detection frequency |
|---|---|---|
| pH value | 7.0-7.5 | once a week |
| Ammonia nitrogen | 0mg/L | once a week |
| nitrite | 0mg/L | once a week |
| Nitrate | <50 mg/L | once a week |
4. Feeding and feeding
Proper feeding is an important factor in ensuring the healthy growth of koi fish:
| Feed type | Feeding frequency | Things to note |
|---|---|---|
| Special koi feed | 2-3 times a day | Choose high quality feed |
| Live bait (such as water fleas) | 1-2 times a week | Needs disinfection |
| vegetables (such as spinach) | 1 time a week | Feed after cooking |
5. Common diseases and their prevention and treatment
Common diseases of koi fish and their prevention and treatment methods are as follows:
| Disease name | Symptoms | Treatment |
|---|---|---|
| white spot disease | White spots on body surface, rubbing against body | Raise temperature to 30°C and add salt |
| fin rot | fin ulcer | Improve water quality and use antibacterial drugs |
| Gill disease | swollen gills and shortness of breath | Use special treatment for gill disease |
6. Daily management skills
1.Change water regularly: Change 20%-30% of the water volume every week and use dechlorinator to treat new water.
2.Observe fish behavior: Pay attention to the swimming and feeding conditions of fish, and detect abnormalities in time.
3.Avoid overfeeding: The amount of each feeding should be eaten within 5 minutes.
4.Control stocking density: Each koi requires at least 50 liters of water space.
7. Advanced feeding suggestions
For breeders who want to improve the quality of koi fish, you can consider the following advanced methods:
| method | Description | Things to note |
|---|---|---|
| color enhancement feed | Contains color-enhancing ingredients such as astaxanthin | Requires appropriate lighting |
| seasonal management | Reduce feeding in winter | Stop eating when the water temperature is below 15℃ |
| Breeding management | Spring is the breeding season | Need to prepare spawning bed |
Through the above comprehensive feeding guide, I believe you have mastered the basic methods of raising koi fish in the aquarium. Remember, patience and careful care are the keys to keeping a good koi fish. I wish you a happy aquarium breeding journey!
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