Angelfish reproduction

Angelfish is loved by many tropical fish lovers for its beautiful and unique body shape, but its habits and breeding habits have not been well noticed.
Actually, angelfish is a very fishy fish. Aquarists just observe and understand it carefully and you will find that they will establish a good friendship. When you are excited to buy a nest of little angelfish, feed them regularly every day and watch for some time. Slowly, after about ten days or so, you will be surprised to find that: Whenever you approach the fish tank, even if you do not feed, they will swam quickly and shake their heads and tails in front of the tank to express affection for you. Next you You can use your fingers to slowly move in front of the cylinder to indicate that they are in a good line, so that if you have patience, the movements are gentle and non-aggressive. You will see their line-up welcome after more than a month. That feeling is so wonderful. I don't want to be in the mirror. I wish you success! Of course, you can also play more games with them. Maybe you will have more discoveries. I will not say more. This is the game between you and your fish.
The breeding of angelfish is even more interesting. Mastering the breeding techniques of angelfish is an enviable task.
They lay their eggs carefully before spawning, spawning the eggs from the females, and then fertilizing the eggs. Imagine how beautiful the two flowing gods alternately move up and down regularly on the spawning board. After the spawning, the care and care of eggs and larvae is even more touching!
Whether you would call me this: "Don't describe it! You want to mad at me? Just say the method!!!" Well, I'll talk about the propagation method and process in detail below.
First, the cultivation of broodstock.
At this point, I always considered it to be the most difficult. In fact, it is difficult for any kind of fish to get a very satisfying broodstock, but it is even more difficult for angelfish. why? This is determined by the breeding habits of angelfish. Angelfish is a fish that is free to love. Only the male and the female can “combine with each other” to combine. After the union, it is a loving couple. Without special circumstances, they will grow old. You will get 8-9 nests in one year. Although it was harder to start, the subsequent gains were much larger than those of raw eggs.
How to cultivate broodstock? The first thing to do is to choose a small fish about one month old. Of course, it should be robust, with good fins, good posture, fast and beautiful swimming, strong appetite, clear texture, and colorful colors. And the number is the key here! At least not less than 6, at most? Not more than twenty. Why? I know you must ask. According to the mathematics method of calculating the probability, 6 will only guarantee a pair of male and female (the specific algorithm will not say, this is a mathematical problem). At most, it is the purely empirical conclusion, and the reason is that there are too many difficulties in breeding. Twenty of the angelfish to be kept as brooders should use a cylinder of 1m 2 minimum. How much more are you using? Unless you want to be a professional fishmonger. Another point is that fish is like people. If you choose a large space, you will also be “picking your eyes”. In the end, you will become an old lady and an old bachelor. (I once had a cylinder of more than 20 gods. I didn't even have a pair when I opened the spring. I also fight all day. I'm divided into two tanks and mixed with other fish. I have three pairs!)
In addition, we will talk about the genetic problems of selection of angelfish. In this respect, animal genetics are basically the same. In the case of angelfish, in general, you need to get the same child fish as the broodstock. The easiest way is to reproduce the lineage directly, but if you do so, the first Fortunately, in the second generation, there will be a large number of deformities, degenerative and weak bodies, which are not conducive to long-term farming, but it is still the best choice for the general lovers; the second method is to reproduce, It is to use the first generation of males in the direct line to mate with the females of the third generation or the males of the first generation and the females of the second generation in the lineage (what a mess is, in fact, grandpa and granddaughter or uncle and niece). The third method is exogenous mating and breeding, and more to the fish market, the choice of different fish into the fish channel and the same species as a species of fish, this method is to get the most healthy and strong offspring of the method, while the enthusiast It is also the most difficult. I generally adopt the second method, because I have two very familiar sellers, and for the fish aquarists that just started breeding and breeding, I would recommend the first method, after all, it is the simplest and most effective.
The sexual maturation of angelfish takes about ten months, which means that the fish purchased this year will not be able to reproduce until next year. Why must one-month-old fish be purchased? This is because only at this time is it possible to obtain qualified broodstock. For example, if you purchase adult fish, they are mostly screened by fish owners. There are very few good fish in the fish market, even if you catch up with luck. However, the feeding status of adult fish is not the same. Fish farms may use hormone-substituted feeds to promote the rapid growth of small fish. On the surface, they cannot be judged. This kind of fish can't be used for breeding. You spend a lot of energy to create environment for it and most of them will suffer from poor fertilization or malformation. And only fish that grew up together will be mutually friendly, have more feelings, have greater pairing opportunities, and have a higher ratio. (Is it childhood?:—))
During broodstock cultivation, there must be fresh, highly nutritious and diversified bait, feeding regularly, and feeding space to be large, so as to cultivate a broodstock with large size and robustness.
All of the above reasons have caused the cultivation of the broodstock of the angelfish. However, the harder it is, the harder it will be, is the constant pursuit of our fish farmers.

Preparing for Pre-Breeding When your tank is in such a situation: Many fish are crowded on one side of the tank and the other side is empty but there are only two angelfish. They always stay close together while reproducing. The tube is already prominent. I'm here to congratulate you! Your broodstock has been successfully developed. At this point you need to do some preparation.
1. Prepare a breeding cylinder This cylinder does not need to be large, 50*40*40 is enough. Of course, if you have more, and you are not afraid of waste, you can disinfect the tank with malachite green. Note that if this tank is new, it must be soaked for 7 days in accordance with the “Preparation of Fish Tanks” section, changing the water 3 times. Place a sponge filter, not to mention not knowing, as described in the "Preparing the tank" section.
2. Prepare the water and put the freshly-dried water into the breeding tank to 1/4 and fill it with water from the original tank. The water temperature is 1-2 degrees higher than the feeding tank, and it is constant at 24-26 degrees. Don't blindly ask for high, though it is more beneficial. Stimulation of broodstock spawning, but not conducive to the fertilization of eggs and the growth of larvae. Add veterinary veterinary drugs to prevent mildewing of eggs.
3. The spawning board here does not advocate that the angelfish produce eggs directly on the grass. There are grasses and sand and other substances. The PH and hardness of the water are not easy to manage, and the quality of the grass leaves will affect the spawning of the broodstock. It is also common to choose a cylinder wall if there are few eggs or if the brooders do not look at the grass, because the grass in the tank is not as widely selected as the natural world. Therefore, it is still better for us to provide a suitable for the broodstock. The spawning point, of course, you must admire nature and nobody forces you. Use grass!
The spawning plates can be bamboo pieces, frosted glass stainless steel plates, bakelite materials such as green or dark brown, I have tried, they are also very like the blue, in short, specific analysis of specific issues, try several times.
The size and placement of the spawning board is a matter of some knowledge, preferably 35*15CM. Too big, brooding fish will be nothing; too small, broodstock and do not see. The place to be placed should be the quieter side of the cylinder, with an angle of 15-25 degrees (note that there are many books on ornamental fish in the country, mentioning the 45-degree angle is better, but I found in practice that the fairy brooders prefer Small angles, and sometimes, sometimes in the choice of 45-degree angle plates and cylinder walls, they would choose the latter).
3. After the broodstock was put into place, some of the things that may have happened before the spawning were good. Now basically everything can be said to have been put into the brooding fish that you have chosen. After that, you wait for them to lay eggs.
If they like your arrangement, you will soon (maybe the next day, maybe within ten minutes after entering the tank), and the mother fish will begin to see a slap. At this time, her fallopian tube will become more prominent. If it is successful, the male fish will join the camp on the second day and you will see the spawning process at the latest in the next day.
However, there are some exceptions that happen to happen to many fish aquarists, that is, the mother fish have been plated for a long time (a week ... ten days, even a month), and the male fish is not with her. Together, the vas deferens is not fully extended. Why is this? In fact, this is a relatively normal phenomenon. The main reason is the different physiological development of male and female. Just as we are familiar with, the human male and female physiological development period is different. Women begin to develop sexual characteristics at the age of 10-11 (that is, enter puberty). Men are generally one year later than females, and so are fish. It is angelfish. Many fishes have this problem.
The above-mentioned problems have generally occurred in the first child. Before, we always thought that young parents had no experience. They thought that it was due to experience that they had succeeded in spawning. It was actually wrong. The mother fish waits for the sexual maturation of the male fish while they keep licking, and the two weeks ... one month is just the difference between the sex development of the male and female broodstock, just fine. Therefore, when this happens, do not be eager. Only wait patiently with the female fish.
But (how so many "but", haha, or "but" is good, or if something goes wrong, you should marry me.) There is one exception in this exception, that is, the sexual function of the male fish is not fully developed. There will be such performance, but there will be a little difference in performance. Very tiny! Don't say I didn't warn you, but don't be lazy if you don't observe it. The difference is that in the process of seeing the mother fish, every one or two days, the male fish will take part for a period of time, and the phenomenon of sticking out the vas deferens (the time is short, usually only one or two hours), and then Retract the vas deferens and go to the side of the tank. If this situation lasts too long, it may cause the female fish to die after lagging. If it is determined to be the case, the male fish can be raised and the mother fish can be returned to the group. Soon, she will find another proud owner.
Suddenly remembered another widely known knowledge among fish aquarists. It is considered that the angelfish is a monogamous system of life. Actually, the angelfish are generally monogamous and loyal, but if one of the spouses is sick, causing death or extreme weakness, he or she will also Choose your favorite one. However, the phenomenon of divorce is rare (I have kept the gods for ten years and I have seen only one time.) It is very common for widowed wives to marry (娶).
Speaking of this, there is a more interesting phenomenon to share with everyone, I do not know if the fish friends have not encountered. The mother fish that are generally flawed are easily paired. I used to have three such fish. They were all paired (a success rate of 100%). There was one pair or the only pair in the group. I had two. Friends have also encountered this phenomenon. I can't figure out why this phenomenon till now. I just guess that it may be the same as people's emotional life! Do you see if the ladies who are a bit pretty or knowledgeable are many old girls? The big brothers are incapable of being high and low, and the ugly will not hesitate to marry once they have the opportunity. Ah! Do not be too concerned about. And don't pick faulty fish to make fish. The fish should be the best fish. I didn't eliminate the defective fish because I didn't find it when I was buying, but I felt too late after buying it. inhuman.
OK, right now. The process of spawning of angelfish has been said. In the process, you generally do not disturb them. Do not do sudden or offensive moves in front of the tank; don't make loud noises; don't make sudden changes in light (Remember!! Don't try to take photos with flash, hope to leave this beautiful moment, I think beautiful Things are always in your mind, but if your technology and camera are very good, then it's a different story...).
IV. After the spawning process After the spawning process is over, you need to pay close attention. At this point, you have two options:
1. Leave the egg to be hatched by the broodstock. 2. Remove the egg and put it in another container.
First, the second, this method is simpler, easier to manage, and there is no need to worry about eggs being eaten by broodstock (nonsense!:)) for productive reproduction. The following are the characteristics and methods of the second method:
1 Convenient management, as long as a container with a depth of about 20CM is used, add the water from the spawning tank and put it into the spawning board (note that the spawning board should be the shortest in the air), about 15CM in the spawning board. Place an air pump, the water temperature is constant and maintain the original cylinder degree. After 36 hours, you will see hatching of larvae. During the 36 hours, you should pay attention to promptly remove unfertilized or dead eggs (whitish) with tweezers so as not to induce water mold.
2 This method is conducive to the recovery of the broodstock's physical strength and thus to the next reproduction more quickly.
3 Safe and high hatching rate. Because you don't need to worry about the brooding fish being frightened or fighting for a certain reason, you can eat eggs, and the air pump is more tireless than the broodstock (the quality of the air pump is still relatively reliable). It should be noted that you can not be lazy, not fertilized eggs, dead eggs must be timely clip, the best water to add some veterinary oxytetracycline, plus mold (do not use penicillin, there will be attached role, resulting in deformity). You can't break your breath, and you can't produce too much current. You must test it beforehand. It doesn't matter if the eggs fall out. Within 36 hours after hatching, the larvae will always be on the spawning board and slowly absorb the nutrients in the yolk sac. After the larvae start to swim, they should be fed with grey water or Toyota shrimp. After 7 days, they will feed the little red worms (filtered red worms). After 15 days, they can feed the little red worms. After one month, they can eat anything. .
The biggest drawback of this method is that you give up the moving situation of the family when you watch the brood fish (a real loss!!).
Return to us to say the first method. The brooders entering the ovum stage have higher requirements on the environment. Be sure to keep quiet as much as possible (at this time our family is always like the emperor) so as not to scare the broodstock and cause horrors after eating eggs. This phase should pay attention to the following points:
1 It is best to supplement the nutrients consumed by the broodstock and feed it with palatable high-nutrient foods. Blood bugs (larvae of the larvae) are better. Of course, if you can get fry for angelfish, it will be better. The broodstock quickly recovers its strength. In the summer of 1996, I took a little fry every two or three days to feed the broodstock. As a result, the pair of gods saw three wolves in two months and they were in good health. If I were not too worried about them being tired, they would I would like to continue real estate development, because I later had to separate them in order to prevent them from spawning again.
2 Pay attention to careful observation. After the end of spawning, male and female gods will take care of themselves in front of the spawning board. They use fins to scoop water to provide oxygen for the eggs. They are so conscientious that they almost never stop. Your aquarium is full of parents. The love of the children is the reason why this family of angelfish is called Cixi. While supplying eggs with oxygen, they also closely observe the hatching of the eggs. When they encounter unfertilized eggs, they will eat them. At this time, you do not need to be nervous. This is a normal phenomenon in the process of fat eggs and should be distinguished. treat. Many fish aficionados couldn't be separated at the beginning, but they hurriedly fished their broodstock. As a result, due to lack of preparedness for the emergency, the eggs were killed due to lack of oxygen. What a pity! However, this is a process that requires careful observation and comparison to accumulate experience. When the eggs are usually eaten, the broodstock moves quickly and is large area. At this time, you must remove them quickly. When you eliminate the dead eggs, they will be very careful not to touch the eggs on the side, but also to eat those eggs that are already white or have water mold.
3 Sometimes unpleasant things happen in the loving camp. This is generally due to the fact that one of the brooders feels that the other is not caring enough or that there is disagreement when excluding eggs. At this time, there will be fighting. The most common forms of expression are the same as when you are confronted with each other. They will bite each other's pectoral fins or the two sides will bite each other's mouth and push (sometimes stalemate or like a saw). At this time, the males are generally attacked. You must interfere with their domestic affairs. Otherwise, the success of hatching will be affected. To use a large point of the transcript, remove the male fish steadily, quasi-rapidly and quickly, and pay attention to observing the reflection of the female fish after fishing. At least one or two hours is required. If the mother fish normally ovulates, everything is OK; And if she's looking for something and forgets to care for the eggs, then either you should put the male fish back (preferably don't toss) or you'll have to remove the mother fish and suck the bottom of the jar to make the water level drop to the end. The egg plate is only 2 cm away, and an air pump is placed 15 cm away from the spawning plate. OK, wait.
36 hours will pass quickly for the average time, and you will be waiting for the hatching of the larvae for a long time. During this time, your heart is always on the move and I do not know what will happen suddenly. It seems very painful, and when that moment comes, ah! Really excited, really, really, I still remember for the first time more than 10 years ago when I first saw my angelfish spawning. I had almost no sleep the night before and I put a 3W in the breeding cylinder. The small lamp, every few minutes like a thief (afraid of a shock to the fish) went to the edge of the cylinder for a while, went to sleep on the second day at work, got up early in the morning on the third day (you asked me why The next night I fell asleep, and I couldn't sleep for a day and night. I did a manual job at that time.) Ah, the eggs hatched. I saw a dense tail on a spawning board. Stop shaking, really excited, and even should be moved, feel the wonders of creation and the preciousness of life.
4 After waiting 36 hours, the larvae will suck up the nutrients of the yolk sac. They will stay on the spawning board for 36 hours. If any of the little naughty tails is too strong, it will move from the board. Fall out, but don't worry, if their parents watch it, they will put him in his mouth and put it back on the board. Don't you misunderstand that they are trying to eat larvae! There is usually no problem at this stage, but if the brood always keeps moving the larvae, it is not good for the larvae. You can fish out the male fish. (Note that this means never stopping, otherwise it is better not to interfere) .
V. After a full 72 hours of food has passed, you will play poker with two big gods and swim in the tank. A group of little fishes will be swimming around them. It's spectacular! happy! Happy! I do not know how to describe. The taste is still waiting for you to experience it!
Don't patronize your appreciation. You are very busy. You must cook quickly. It's not for you. It's for the little fish. Generally, after the eggs hatch, go to the old fish aquarists who are selling fish or some of their own worms, and set aside the grey water one day in advance. This is because the gray water is to be specially designed. After the small fish swims, it is necessary to feed gray water, and it is done by sucking and dropping it into the small fish school with a dropper.
If you can't really get gray water, there are two ways:
1. Use Toyota shrimp eggs. The method of hatching is in the column of breeding grounds. This method is on the silver two... oh!
2. Use cooked yolks. Cook an egg, knead the egg yolk, wrap it in gauze, and squeeze it in a bowl of water. This will melt the egg yolk water and suck it up with a dropper to feed the fish. The survival rate of this method is not high, there is no way to approach it.
Sixth, the care of the small fish generally one to two days after the fish swim will be broached fish, 7-10 days after the fish can eat small worms (water lice). The entire breeding process is also over.

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