What kind of fish is easy to raise? How to pay attention to the selection?

Is it easy to raise ornamental fish? there are many kinds of ornamental fish, and some good ornamental fish are also difficult to raise. Owners can choose and buy them according to their own actual situation, but for novices who have no breeding experience, it is best to choose ornamental fish that are easier to raise, so as not to kill the fish. Is the ornamental fish easy to raise? Next, let's take a look at the key points of raising ornamental fish.

1. To raise good fish, you must first learn to buy good fish: healthy fish swim in the middle and lower layers of the water (except upper fish), scramble for food, swim naturally and leisurely, the caudal fin is clear and detached, the eyes are clear, and the body is large. Sunken, floating head, swimming is struggling, there are trauma, white hair, white spots, caudal fin hypertrophy, turbidity, serious blood, dark body color, muddy eyes, single alone, refusing to eat or wiping the tank with the body are all sick fish and must not be purchased.

2. If you are going to mix several different species of fish in one tank, you should take into account the compatibility between different species of fish. Ferocious fish and mild fish are not suitable for co-culture; it is not suitable for mixed culture with too many individual differences (mild species can be considered). Different water quality requirements are not suitable for mixed culture, and so on.

3, when buying, fierce and large and medium-sized fish, not only to inflate oxygen, but also to cover the outer layer of a black bag to reduce the nuisance caused by the outside world to the fish. High-grade fish should be bagged separately so as not to touch each other and cause damage. We should also pay attention to heat preservation when buying fish in winter, and the plastic bags for fish must be thick and reliable, especially those with hard fins.

4. do not rush into the tank after buying tropical fish. Soak the plastic bag into the tank for 10 to 20 minutes and then open it. Let the water in the tank flow backwards into the bag several times and slowly mix with the original water in the bag, so that the fish can slowly adapt to the water temperature and water quality. If there is a light, the light should be turned off. The fish are relatively calm in the dark and are not easily frightened.

5. Tropical fish are most suitable for living in the range of 25 ℃-28 ℃. Up to 32 ℃ in summer can live normally, but if the temperature changes too much, tropical fish will not be able to adapt. Before buying fish, you should not only adjust the water temperature of your aquarium, but also note that the water temperature of the aquarium shop should not deviate from that of your fish tank, which is generally allowed within 4 ℃. If the deviation of the water temperature between the two is too large, you would rather not buy it for the time being, but also take one more trip to adjust the water temperature to basically the same before buying.

6. Changing too much water in the fish tank at one time will lead to water quality discomfort. Water quality includes pH value, hardness, chloride ion, dissolved oxygen, nitrate water salt, sulfide, protein and turbidity, etc. Tropical fish have adapted to live in the original water quality, if all change the water, suddenly change the water quality, they will not be able to adapt, so that the physical decline and disease. If you need to make a bottom to wash the tank, you should also keep most of the old water. After washing the tank, you will return the left water to the tank and then add new water.

7. Pay attention to the release density of fish. Tropical fish like large activity space, beginners often see the favorite fish to buy, rarely care about how many fish can be raised in the tank, which requires special attention. In general, you should take 1 liter of water to raise 1 cm long fish as the benchmark, if your fish tank contains 100 liters of water, then it is safer to feed 10 cm long tropical fish at most. I myself insist on taking about 1.5 liters as the control target. In a larger space, fish are more active, physically strong and colorful. Overfeeding, excessive density, lack of oxygen in water and deterioration of water quality are the main causes of disease and death of tropical fish.

8. How to feed. Caress fish tank should pay attention to control food, to once or twice a day, 3 to 5 minutes to eat is appropriate. Feed less in cloudy and rainy days, not at night. Fish in the process of digesting food need to consume more oxygen, rainy days, night pressure is lower, the dissolved oxygen in the water is also low, feeding fish in overcast and rainy days may lead to serious hypoxia in the water and death of fish. Most of the dead fish occur at night, and severe hypoxia in the water is one of the main reasons.

9. Bait must be clean, which is the easiest thing for beginners to ignore. Feeding unclean bait can easily lead to fish disease. It is recommended to buy brand frozen fresh foods produced by professional companies, such as scarlet worm, harvest shrimp and so on. Although live worms such as water earthworms and water red worms are the favorites of tropical fish, they all grow in the polluted water environment, and they are easy to die and rot in temporary culture, so it is necessary to put live food steadily.

10. Keep the water clean. After eating, tropical fish will consume a lot of oxygen and discharge a lot of waste, polluting the water and breeding germs. In order to keep the water clean, a highly efficient shower must be installed. If it is a bare tank fish culture, but also use to remove excreta from the bottom of the tank at the same time to replace 1/10 or a little more old water, especially in summer must not be ignored. For the ecological tank of fish and aquatic plants, you only need to change 1 / 4 of the water once a week.

11. Bring grease and detergent into the water. Oil will float on the surface of the water to isolate the air, so that the oxygen in the water can not be replenished, resulting in the death of tropical fish without oxygen. Throwing carnivores or even applying hand cream on your hands will bring oil into the water and should be carefully avoided. Accordingly, fish tanks should be further away from places where oil and gas are generated.

12. It is best to start with fish that are cheap and easy to raise, and then raise valuable varieties after accumulating experience, so that you can be handy and successful.

I hope the above content can help you, and if there are any deficiencies, I hope you can give us your advice.