How to raise koi fish in aquarium
Koi fish are a popular choice for aquariums because of their bright colors and graceful 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 higher requirements for water quality and environment, but with reasonable feeding methods, they can grow healthily in aquariums.
| 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 setup of aquarium
Koi fish are larger and therefore require a larger aquarium. Here are some key parameters:
| Aquarium size | Water volume | Filtration system |
|---|---|---|
| At least 100cm×50cm×50cm | 200 liters or more | External filter or upper filter |
In addition, the aquarium should be equipped with heating rods (to keep the water temperature stable), oxygen pumps (to increase the amount of dissolved oxygen) and appropriate decorations (such as stones, aquatic plants, etc.).
3. Water quality management
Water quality is the key to raising koi fish well. 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 content | 0mg/L | once a week |
| nitrite | 0mg/L | once a week |
Regular water changes (1/3 of the water is changed every week) and cleaning of the bottom sand are important measures to keep the water clean.
4. Feed and feeding
Koi fish are omnivorous fish, and the choice of feed and feeding methods directly affect their health and color performance.
| Feed type | Feeding frequency | Things to note |
|---|---|---|
| Special koi feed | 2-3 times a day | Choose high quality feed |
| Live bait (such as bloodworms) | 1-2 times a week | Needs disinfection |
| vegetables (such as spinach) | 1 time a week | Feed after cooking |
Be careful to avoid overfeeding, and the amount of each feeding should be consumed within 5 minutes.
5. Common diseases and their prevention and treatment
Koi fish are prone to diseases such as white spot disease and fin rot. The following are the prevention and treatment methods of common diseases:
| Disease name | Symptoms | Treatment |
|---|---|---|
| white spot disease | White dots appear on the body surface | Raise the temperature to 30°C, add salt or treat with medication |
| fin rot | fin ulcer | Improve water quality, use antibiotics |
The key to preventing disease is to keep water clean and avoid environmental changes.
6. Breeding of koi fish
The reproduction of koi fish requires specialized environment and skills:
| breeding season | Breeding water temperature | Things to note |
|---|---|---|
| spring | 20-25℃ | A spawning bed (such as aquatic plants) needs to be provided |
During the breeding period, close observation is required, and parent fish and fish eggs should be separated in time to avoid harming each other.
Summary
Raising aquarium koi fish requires patience and a scientific approach. From aquarium selection and water quality management to feed feeding and disease prevention, every step is crucial. I hope that through the introduction in this article, you will be able to take better care of your koi fish and let them live a healthy and happy life in the aquarium.
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