(1) The cultivation of broodstock has always been considered the most difficult. In fact, it is very difficult for any kind of fish to get a pair of very desirable broodstock, and it is even more difficult for angelfish. A little harder. This is determined by the breeding habits of angelfish. Angelfish is a kind of fish that loves freely. Only when the male and female "match each other's eyes" can they be combined. After the union, they will become a loving couple. Unless there are special circumstances, they will grow old together. You will get 8 to 9 litters of little angels in a year. Although it is a little difficult at the beginning, the harvest later is much greater than that of oviviparous fish. To raise broodstock, you must first select small fish that are about one month old. Of course, they must be strong, with good fin shape, good posture, fast and graceful swimming, strong appetite, clear texture, and bright colors. And quantity is the key here. The minimum number cannot be less than 6 and the maximum number cannot be more than 20. In addition, we also want to talk about the genetic issues of angelfish breeding. In this aspect, animal genetics are basically the same. When it comes to angelfish, generally you have to get offspring of the same species as the parent fish. The simplest method is direct blood breeding, but if you do this, first Fortunately, there will be a large number of deformities, degenerations and weak bodies in the second sub-line, which is not conducive to long-term breeding, but it is still the best choice for ordinary enthusiasts; the second method is reverse cross breeding. That is to mate the first-generation male in the direct line with the third-generation female or the first-generation male with the second-generation female in the branch line; the third method is exogenous mating and breeding. Go to the fish market to find out. Selecting small fish from different fishing channels and the same species as brood fish is the way to get the healthiest and strongest offspring, and it is also the most difficult for hobbyists. The sexual maturity of angelfish takes about ten months, which means that the small fish purchased this year will not reproduce until next year. Why do you have to buy 1-month-old fish? This is because it is only at this time that it is possible to obtain qualified broodstock. If you buy adult fish, most of them are screened by fish owners. It is rare to find good adult fish in the fish market. Even if you are lucky enough to catch it, However, the feeding conditions of adult fish vary. The fish farm may use feed containing hormones to promote the rapid growth of small fish. It is impossible to judge on the surface. This kind of fish cannot be used for breeding. If you spend a lot of effort to create an environment for it, most of them will suffer from poor fertilization or deformity. And only fish that grow up together will be friendly to each other, more affectionate, have a greater chance of pairing up, and have a higher ratio. During the breeding period of the broodstock, fresh, highly nutritious, and diverse bait must be provided, fed regularly, and the feeding space must be large, so that large and robust broodstock can be cultivated. (2) Preparation before breeding When a situation like this occurs in your tank: many fish are crowded at one end of the tank, while the other side is empty but only has two angelfish. They always stay very close together, and at the same time The reproductive tube has been clearly protruded, indicating that your broodstock has been successfully cultured. At this point you need to make some preparations. 1. Prepare a breeding tank. This tank does not need to be very big, 50×40×40 is enough. Of course, if you have a larger tank and are not afraid of waste, you can also disinfect the tank thoroughly with malachite green for later use. 2. Prepare water. Put the new water that has been dried into the breeding tank to 1/4 of the height, and then fill it up with water from the original tank. The water temperature is 1~2℃ higher than that of the feeding tank. Keep it at 24~26℃. Do not blindly seek higher temperatures, as that will be more beneficial. Stimulates broodstock to spawn, but is not conducive to egg fertilization and growth of larvae. Add veterinary oxytetracycline to prevent mildew in the eggs. 3． It is not recommended to let angelfish lay eggs directly on the grass on the spawning board. If there is grass, there will be sand and other substances. It is difficult to manage the pH and hardness of the water quality. Moreover, the quality of the grass blades will affect the spawning of the broodstock. , it is also very common if the number of eggs laid is small or the broodstock does not like grass and chooses the tank wall, because after all, the grass in the tank is not as wide-ranging as the grass in nature. Therefore, it is better to provide the broodstock with a product that is more suitable for them. Egg point. The spawning board can be made of bamboo chips, frosted glass stainless steel plates, bakelite and other materials. The color is preferably green or dark brown. There is some knowledge in the size and placement of the egg-laying plate, and the size of 35×15cm is appropriate. If it's too big, the parent fish will have no idea what to do; if it's too small, the parent fish won't like it.

After the larvae start to swim, they should be fed with gray water or brine shrimp. After 7 days, they should be fed with small red worms (filtered small red worms). After 15 days, they can be fed with small red worms. After one month, they can eat anything. . Let’s go back to the first method. The broodstock that have entered the egg-protecting stage have higher environmental requirements. They must stay as quiet as possible to avoid frightening the broodstock and causing the tragedy of eating eggs after being frightened. At this stage, the following points should be noted: 1. It is necessary to replenish the nutrients consumed by the broodstock and feed it with palatable and highly nutritious food, preferably bloodworms (larvae of Yao mosquitoes). Of course, it would be better if you can get fry suitable for angelfish to eat, which will make the broodstock Recover strength quickly. In the summer of 1996, I caught some small fry every two or three days to feed the broodstock. As a result, the pair of angels saw three nests of fish in two months and were in good health. If I hadn't been too worried about them being tired, they would still be alive. They kept laying eggs, I think so, because I later had to separate them to prevent them from laying any more eggs. 2. Pay attention and observe carefully. After spawning, the male and female fairies will take turns guarding the spawning board. They use their fins to paddle the water to provide oxygen to the eggs. They are so dedicated that they hardly stop. At this time, your fish tank is full of parents expressing their love for each other. The love of children, this is why this family of angelfish is called cichlids. While supplying oxygen to the eggs, they will also closely observe the hatching of the eggs. If they encounter unfertilized eggs, they will eat them. Don't be nervous at this time. This is a normal phenomenon in the process of fattening eggs and should be distinguished. treat. Many aquarists were unable to tell the difference at first and hurriedly fished out the parent fish. As a result, due to insufficient emergency preparation, the eggs were deprived of oxygen and died in pieces. But this is the process, which requires careful observation and comparison to accumulate experience. Usually when eating eggs, the parent fish will move very quickly and over a large area. At this time, they should be fished out quickly. When removing dead eggs, they will be very careful not to touch the eggs on the side, and they will only eat those eggs that have turned white or have water mold. 3． Sometimes unpleasant things happen in the loving camp. It is generally caused by one parent fish feeling that the other parent does not care enough or there are differences in the removal of dead eggs. At this time, a fight will occur, and the most common form is the same as when fighting, with each other biting each other's pectoral fins or both parties biting each other's mouths and pushing each other (sometimes there will be a stalemate for a long time or like a saw). At this time, it is usually the male fish that are attacked, and they must be interfered with, otherwise the success of hatching will be affected. Use a larger scoop to fish out the male fish steadily, accurately and quickly. After fishing, pay attention to the reaction of the female fish. It will take at least one or two hours. If the female fish is protecting its eggs normally, everything will be fine. ; And if she is looking for something and forgets to protect her eggs, then you can either put the male fish back (it is best not to mess with it), or fish out the female fish, and then suck the bottom of the tank to lower the water level to The egg-laying plate is only 2cm away, and an air pump is added 15cm away from the egg-laying plate. 4. It will take another 36 hours for the larvae to absorb all the nutrients in their yolk sacs and swim down. During these 36 hours, they will stay on the spawning board. If any naughty little naughty boy shakes his tail too hard, he will fall off the board. Come down, but don't worry, the parent fish will hold him in their mouths and put him back on the board. There is generally no problem at this stage, but if the parent fish keeps moving the larvae around, which is not good for the larvae, you can fish out the male fish (note, it means non-stop, otherwise it is best not to interfere). (5) When starting to feed, usually after the eggs hatch, you go to the fish market seller or some old aquarists who fish for their own worms to order gray water a day in advance, because gray water needs to be prepared specially. After the small fish swim, you need to feed gray water. Just use a dropper to suck up and drop it into the small fish group. If you really can’t get gray water, it’s okay. There are two other ways: 1. Use brine shrimp eggs. 2. Use cooked egg yolks. Boil an egg, crush the yolk, wrap it with gauze, put it in a bowl of water and squeeze it, it will dissolve into egg yolk water, suck it up with a dropper and feed it to the small fish. This method has a low survival rate and is a hopeless method. (6) Care of small fishes: Generally, the parent fish will be fished out one to two days after the small fish swim. The small fish can eat small red worms (water fleas) after 7 to 10 days. The entire breeding process is also over.