Hello all aquarium lovers, I am an experienced fish farmer. I would like to learn more about the practical knowledge of raising and breeding ornamental fish, so please pay attention!
Several aquarists have raised this question:
Why do the goldfish fry or mini parrot fry I breed begin to die in large numbers after being raised for about a month, and every time? Well, isn't that weird?
Yes, I also find it very strange. How can there be such a coincidence in the world? Could it be that there are so many days every month? Is it impossible?
One month ago and one month later, this fry was no longer the same fry. It was because we didn’t see the change.
In fact, in fish farming experts, this kind of death phenomenon also occurs in fish fry. It’s not that it doesn’t happen. It happens often. The reason is very simple, that is, I don’t have time to take care of them, and I can’t serve them anymore.
The water quality and food did not change with the growth of the fry. This is the final reason, otherwise how could they die?
I just saw it and didn't take care of it, while some new aquarists simply didn't notice this change, or in other words, they may not have the time and conditions.
Most new aquarists breed ornamental fish , especially for some ornamental fish species with strong reproductive ability and large numbers. At the beginning of breeding, our breeding water body should not be too small, if we do not want to move the fry to the tank in the short term. if.
Otherwise, once they grow rapidly, the fish will die directly just because of the stocking density problem.
The water temperature of small fry is not constant, and they will get sick sooner or later. It is just a matter of time.
Since the water body of our fish tank is too small, there will definitely be a problem that the water temperature may never be constant. .
Perhaps, in the short term, this disease may not break out, but it will just accumulate for us. After reaching a certain level, as long as the density of small fry increases and the water quality begins to deteriorate, all diseases will occur together, and soon The result is: one of
will die today, three to five will die tomorrow, and the tank will basically be cleared within three to five days.
This is also an extremely important reason for the mass death of small fry. If you want it to be good, at the very least, the temperature difference between day and night should not be greater than two or three degrees. The smaller the fry, the temperature difference must be reduced accordingly.
Where did those guppies get their pintails?
has a great relationship with water temperature, water quality and stocking density. Basically, these three factors are at work.
Oxygen, Water Fairy or filtration should also be kept up. It is not the fry tank that never needs equipment.
There are also some aquarists. No matter how many ornamental fish they raise, will never know what it means to change the water. This is extremely Lamentable.
When we first started to raise small fry, whether we were feeding egg yolks, frozen food or fish feed, because there was no filtration in the fish tank, the residue at the bottom would gradually accumulate. When the fry were very small, these residues could not be big. It has the effect of destroying water quality, but what happens after a long time?
We were still there indifferently. We simply ignored the debris on the bottom on the grounds that it was difficult to catch the small fry and that changing the water at the bottom might pull them up. Anyway, the fry were still small. This kind of raising method might work at first. After it lasts for a month, we can imagine how much toxins will accumulate in this water body. It is strange that the small fry will not die, and they will soon be finished in a few days.
Therefore, if we supply a small amount of oxygen appropriately or add a water fairy, after the fry are more than 20 days old, even if we add a small upper filter, there will generally be no problem. If we are not willing to change the bottom As for the water, there is no place to separate the tanks, so we can only find a way to add a small filter to maintain the water quality. Otherwise, we will just let them wait to die there.
I had nothing to do this morning, so I turned on the filtration of the fish tank of the mini parrot fry, because the water quality was a bit out of control. There was an oil film on the surface of the water and impurities on the bottom of the water. I have been feeding red nematodes in the past few days. Their growth rate has obviously accelerated a lot. Individuals of this size are already nearly a month old. If the filter is turned on, they will not have any problems. For some of the
that are too thin, they are directly eliminated by the filter. There are very few, that is, only one or two .
The food cannot keep up, and the principle of palatability is unknown. The small fry will always be hungry.
These are all problems we should pay attention to. In fact, I also discovered:
Ornamental fish cannot reproduce too much. If there are too many, they will not be able to reproduce at all. If you don't care, sometimes even the food becomes a problem.
This is not to say that fish feed cannot be fed, but their growth is too slow. Also, if they have been fed live fish and worms before, if the fish feed is suddenly changed, the young fry may not eat it at all. Such a poor constitution of the fry There will soon be a difference between strong and weak , and then if the density is higher, a few more weak ones will die, and the water quality will be completely ruined.
Therefore, we need to constantly change the fish food according to the continuous growth of small fry. For example, within three to five days, egg yolk water, then brine shrimp, small fish insects, etc. Even if it is brine shrimp and small fish insects, it will There is a big difference in size between thin eggs and big red eggs, small fish insects and big fish insects. If the small fry grows too fast, we will feed it water-repellent after a month. It may Going to eat?
Maybe they are very hungry. Eating some brown algae is much better than swimming in water. Especially if the number is larger, there will be many small fry that cannot get food. Soon they will starve to death or get sick, which will affect the whole tank. .
Separate tanks, add filtration, the conditions cannot keep up, keep the big ones but not the small ones
Therefore, it does not necessarily mean that if a small fry is raised for one month, it will definitely have problems or must die. In this case, how can it be possible? If this happens, there must be something wrong with us in the above-mentioned links.
When the fry grow to a certain level, we must take these factors into consideration. When it is time to pump out the bottom and change the water, we must change the water. If you feel that it is time to add filtration, you can add a small upper filter or a water fairy. The filtration will definitely work. Suckling fry, don’t we know how to observe it ourselves? If it doesn't work, replace it with a smaller one.
Furthermore, if conditions permit, you can divide the tanks appropriately, so that there won’t be any big problems. Originally, the fry in a tank cannot be as large as each individual, unless all the above conditions are met, and the food is always sufficient and palatable to young ones. The sexes are very good, so that the fry can grow to be about the same size.
If there are no conditions, then we can only keep the big ones but not the small ones. Keep the strong, uniform and larger ones, and ruthlessly eliminate the extremely thin ones.
I am an experienced fish farmer, please stay tuned for more ornamental fish issues, thank you!
