Culture methods and matters needing attention of goldfish

Culture method: select strong and disease-free goldfish fry, the suitable water depth of the fish tank is about 20-25cm, the water temperature is 20-28 ℃, and the PH value is 7.5-8.5. the filtration system can be established in the fish tank, and the animal feed and plant feed can be fed together, and the 1x3 of the original water body should be replaced when changing water. Note: regular and quantitative feeding, the remaining bait and feces should be salvaged in time, water plants can be planted in the fish tank to purify the water quality.

I. methods of culturing goldfish

1. Select fish fry

It is suitable to choose and buy goldfish fry in autumn, when the fish fry grow healthily, the market is large and the quantity is large, the probability of selecting high-quality fish fry is relatively high, the shape of high-quality goldfish fry is full, the tail of each fin is round, the fish body is symmetrical and the scales are more complete, the color is bright, and the survival rate is relatively high.

2. Select a container

Common containers for goldfish culture are porcelain basins, aquariums, tidying boxes, glass tanks, small fish ponds, etc. Goldfish are suitable for shallow basin and big mouth aquaculture. If aquarium culture is used, the aquarium water depth of large fish is generally between 25-30cm, and the water depth of goldfish fry is between 20-25cm.

3. Hardware equipment

The hardware equipment includes siphon pipe for water exchange, oxygen pump, lighting tool and filtration system, in which the filtration system is very important for goldfish culture, and the filtration system can maintain the normal activity of goldfish. The filtration styles include upper filtration, side filtration, built-in filtration, external waterfall filtration, external brand filter bucket, self-made trickle up filtration, and biological filtration. The commonly used filter media are physical filter media and biological filter media. The principle of filtration is to generate circulating water in the cylinder.

4. Water quality treatment

The main results are as follows: (1) the suitable water temperature for goldfish culture is 20-28 ℃, and the PH value is 7.5-8.5. the tap water used for goldfish culture should be exposed to the sun for about 24 hours, or leave for 2-3 days, or add baking soda to remove chloride ion, put in water for about 2 days and then release water.

(2) two small fish can be put in the tank first. if the water is turbid, you don't have to deal with it first. Generally, you will slowly clear after waiting for about 7 days. At this time, nitrifying bacteria have been gradually established, and then you can put them into goldfish fry. It takes about 30 days for nitrifying bacteria to be fully established, and the water will become clear and transparent after about 30 days.

5. Match feed

Goldfish are omnivores, so we should pay attention to reasonable food feeding, do not feed too single food, animal food are red insects, fish and insects, water earthworms and so on. Plant foods include wheat bran, bean cake, noodles, rice, bread, diatoms, green algae, yellow algae, Wuping, aquatic plants, duckweed, etc., and can also feed ready-made goldfish feed on the market.

6. Maintain water quality

During the breeding period, it is necessary to change the water and clean the filtered cotton in time, change the water of the original water body, change the water every 3-4 days in summer, change the water every 7 days in spring and autumn, and change the water every 15 days in winter, salvage the remaining bait and fecal matter when changing water, so as to reduce the pollution of water quality. during this period, the water temperature of the fish tank should be adjusted according to climate change, and the PH value of the water should be detected regularly.

II. Points for attention in goldfish culture

1. Goldfish do not know that they are hungry and full. most goldfish die because they eat enough, so they should be fed regularly and quantitatively, and the food that cannot be eaten should be salvaged in time, otherwise it will cause water pollution, lack of oxygen, and so on.

2. The fish tank can be placed in a place where the sun shines directly, which can play a role in sterilization, but it may also lead to the crazy growth of moss, so it should be dealt with in time, and the water should not be completely replaced. Change 1 inch 3 at a time, tap water needs to be placed for 1 day and then replaced.

3. The density of cultured goldfish should be reasonable, ensure that goldfish have enough space for activity, plant some aquatic plants during this period, lay a small amount of sand and rockery at the bottom of the fish tank, for goldfish to play and play, and when raising different varieties of goldfish, we should understand their habits and avoid mixed culture of species that hurt each other.