CATDOLL : CATDOLL: Can sulfur dioxide be used in goldfish fry ponds?

1. Can sulfur dioxide be used in goldfish fry ponds?

No. Sulfur dioxide is a colorless gas with a strong pungent odor and is generally used in industry. When it reacts with water, it will produce a substance called sulfurous acid, which is not good for the growth of fish fry. It is recommended to use chlorine dioxide.

2. How many days does it take for goldfish fry to have a high survival rate?

About 40 days. Because the grass goldfish fry can be fed normally after 40 days, the survival rate is high after 40 days. Grass goldfish can grow to 30-50cm and have a lifespan of about 6-7 years.

3. The crucian carp I raise always die. What is the reason?

We have received feedback from farmers. Starting from the first month of the year, crucian carp suddenly died of unknown causes in Gaoyou and surrounding areas. The main symptoms are red mouth and rotten body, high mortality rate, and very fast infection rate. It is estimated that 50% of the fish ponds are affected, and some fish ponds are completely wiped out. At present, crucian carp in Gaoyou area are affected by the disease, and the price has dropped from more than 8 yuan per catty to more than 7 yuan. Many farmers feel helpless about this outbreak of fish disease. After receiving the news, I immediately contacted Mr. Gu, who raises crucian carp in Gaoyou. Mr. Gu has been raising crucian carp in Gaoyou for many years, with 300 acres of fish ponds and more than 10,000 acres of water surface for distribution services. He is very anxious and confused about the current situation. According to him, this death has occurred suddenly since the first month. "This year, the fish disease situation is very complicated. Crucian carp fry were put down and died in large numbers. Adult fish suffered from unexplained red mouth rot disease and did not move in the original pond, causing heavy casualties, and there is no good treatment plan. I have been in business for more than 30 years, and I have not seen such a complicated situation this year. Many adult fish almost died on a large scale."

Now it is common to see adult fish and fried fish. A large number of fry died when they were migrated to the pond. A family bought 60,000 kilograms of fry, and all of them were wiped out. This kind of situation is very common and rare in history. The pond fish that were not transferred to the pond originally also had red and rotten mouths, high mortality rate, and fast infection. "This situation made Mr. Gu, who has more than 30 years of farming experience, shout "Long time no see", calling it a strange phenomenon. According to the breeding experience in previous years, the normal water temperature of about 25℃ is the time period for bacterial diseases to occur, and fungal diseases are prevalent at about 15℃. "The outbreak of water temperature around 13℃ is a bit confusing. If it is a fungal disease, it will not cause such a strong inflammatory response under normal circumstances. Has the environment changed? Or is it a new pathogen infection? We want to know what's going on. "

Last year, crucian carp farming in Gaoyou was affected by gill bleeding. This year, the incidence of fish farming in ponds has reached 50%. At present, due to the disease, crucian carp are crowded for sale, and the price of fish is also falling. "Sick fish are a few cents per catty, and the normal price of large adult fish has dropped from eight yuan to seven yuan. There are fewer ponds this year. If there are more ponds, the price will be rotten. Something happened a few days ago, and no one wants to throw fish into the market." Farmers are under great pressure for accidents at the ponds. If the entire pond is pulled up, the traffickers will refuse, and the money will be lost. If occasional fish deaths may not be controlled well, then the source of the fish should be considered for total fish deaths. Is it that some fish stores have tricks or the fish tanks are never cleaned, resulting in problems with the fish from the moment they enter the store, which leads to fish lovers being cheated.

The purpose of lifting water is to lay a good foundation for this tank of water, with the goal of getting twice the result with half the effort and preparing for the angelfish. If the water is not well maintained, the fish will be washed away, which may cause the new fish to not adapt to the well-maintained water after returning home, leading to continuous death. This is also an important step. Good water quality is an important prerequisite for the survival of fish. Just as humans live in a clean and sustainable environment, water is like air to fish, and humans' requirements for air quality are constantly increasing. Therefore, in order to keep fish alive, we should give fish a good water quality and living environment. Lack of oxygen is an important reason that easily leads to large-scale deaths of fish. Fish cannot survive without oxygen, so pay attention to the supply of oxygen, which can usually be supplied by changing water or aerating.

Raising fish is not an easy task. First of all, the most important thing is whether the water quality is good. In addition, it is also necessary to see whether the water temperature is suitable for crucian carp survival. In addition, the feeding method is correct. From these points, you can have a deep understanding of

First, it may be that the water quality is poor, leading to pollution and death. Secondly, if there are too many fish, they will lack oxygen and die.

It is because there is not enough oxygen in the water for the crucian carp that I raise, and the facilities I install for the fish are not particularly advanced, and cannot provide the fish with enough oxygen, which causes the fish to always die.

It could be a water problem. There could be bacteria in the water, and it was not cleaned up in time, so this happened.

4. Are goldfish fry resistant to hypoxia?

The grass goldfish fry you mentioned, if you are referring to snapdragon, can certainly resist hypoxia.

Snapdragon is a plant of the genus Snapdragon in the Plantaginaceae family.

It is a perennial erect herb, with the base of the stem sometimes woody, up to 80 cm high. The base of the stem is glabrous, the middle and upper parts are covered with glandular hairs, and the base is sometimes branched. The lower leaves are opposite, the upper leaves are often alternate, with short petioles; the leaf blade is glabrous, lanceolate to oblong-lanceolate, 2-6 cm long, and entire.

The raceme is terminal and densely covered with glandular hairs; the pedicel is 5-7 mm long; the calyx is nearly as long as the pedicel, 5-parted, the lobes are ovate, obtuse or acute; the corolla has a variety of colors, from red, purple to white, 3-5 cm long, the base extends downward in the front into a hood shape, the upper lip is upright, wide, 2-cleft, the lower lip is 3-cleft, and it bulges towards the upper lip in the middle, closing the throat and making the corolla appear mask-like; there are 4 stamens, 2 strong.

The capsule is ovate, about 15 mm long, with the base strongly extending forward, covered with glandular hairs, and the apex pore-slit.

It likes sunshine and can tolerate partial shade. It is relatively cold-resistant but not heat-resistant. It is suitable for loose, fertile and well-drained soil, and can also grow normally in calcareous soil.

Snapdragon can be potted, and its colorful flowers are very suitable for viewing. It is native to the Mediterranean region, with a distribution area from Morocco and Portugal in the north to France in the south, and Turkey and Syria in the east. Snapdragon is named because its flowers resemble goldfish. At the same time, it is also a traditional Chinese medicine, which has the effects of clearing away heat and detoxifying, cooling blood and reducing swelling. It can also be pressed for oil and eaten, which is nutritious and healthy. Snapdragon is a flower that blooms in summer and autumn. It is widely planted in Chinese gardens. It is suitable for group planting in flower beds and flower borders. It is especially effective when combined with zinnias, petunias, marigolds, and salvias. Tall varieties can be used as background planting, and short varieties are suitable for rock beds or window sill flower beds, or for planting on the edges. This flower can also be used as a cut flower.

Flower language:

White snapdragon: kind-hearted;

Red snapdragon: good luck;

Pink snapdragon: flying dragons and dancing phoenixes, auspiciousness and good fortune;

Golden Fish Grass: The house is full of gold and silver;

Purple snapdragon: a perfect time for the full moon

5. How do mini parrot fish protect their young in dangerous situations? Will a few grass goldfish nearby eat the mini parrot fish fry?

Mini parrot fish, under normal circumstances, when he is protecting his young, he will protect her by his side. And your grass goldfish. Will not eat parrot fish. He is a herbivorous fish. Under normal circumstances, if there is no special problem, that is, don't make them too hungry, he will not eat the young of mini parrot fish. The main reason for the wife's mouth is because? Under normal circumstances. Such a person will be anxious about his father and son, and other types dare not provoke him.

When the mini parrot fish is protecting its young in dangerous situations, it will actively drive away or attack other fish including its own kind. Goldfish will eat small fish when they are big enough, and it is impossible for the parent fish to protect all of them one by one (after all, there are too many small fish and they swim slowly).

Big fish eat small fish is a normal food chain.