Compare which fish spits more bubbles, the first fish grid, the second fish flower, and the third fi

Generally speaking, this is normal.

1.Because there is pressure underwater. The respiratory system of goldfish is not the same as that of individual goldfish if they do not maintain air pressure.

Balance, spit out bubbles, and the internal organs will be squeezed out.

2.It may also be a problem with feed Goldfish are very sensitive to feed Special attention should be paid to the selection of bait, which is more on the market.

A common artificial feed is granular, floating, ask if it swells when it encounters water, if it is.

If you want to feed it, pay special attention to the amount! Be sure to feed less, that's the key (a lot of beginners make this mistake.)

Mistakenly, if the fish can't swallow it, it will lack oxygen and directly lead to the death of the goldfish).

3.As the temperature rises, the light in the fish tank should be appropriately weakened, and it can be placed in a bright place to reduce oxygen loss.

However, it can cause damage to the gills.

If you get sick, it may be a non-communicable fish disease: Non-communicable fish disease generally refers to mechanical damage, poor water quality, and lack of oxygen.

Diseases caused by poison, nutritional deficiencies and other predators.

However, it is important to note that many non-communicable fish diseases often cause weakness or trauma and are infectious agents.

The invasion of the body provides the conditions for cross-infection by non-communicable fish diseases complicated by infectious fish diseases, which cannot be ignored.

Seeing. Fish with this disease will suffer from heat stroke and stuffiness (i.e., spitting bubbles).

If you feel that the fish is really sick, you can first take it out for isolation, put heavy salt for 2 hours, and then observe the situation, if it does not work, then treat it with a low dose of Guangpu fungicide.

Don't put salt in raising silver dragons. Silver dragon is the upper layer of large fish, the general temperature control at 28, water a week for a quarter, add water must be raised for 4-5 days, add stabilizer and nitrifying bacteria when adding water, feed small fish and then add fungicide [small fish are easy to carry bacteria], if the silver dragon is not only raised do not turn on the sterilization lamp, clean the filter cotton when changing the water, want to grow a big day to feed 2 times, if it feels too big can be fed once in 2-3 days.

Suddenly Hakka in the second century.

String of bright beads. 褒义例句在學計語连珠 [miào yǔ lián zhū] in a school debate [miào yǔ lián zhū] Basic paraphrasing of Lianzhu. Tan Xiangqiao stirred up stupid and witty words one after another, and his speech won applause from everyone.

Fishing Lessons: Morality is a simple matter of right and wrong, but it is difficult to practice! From the first fish to the second refers to a rigorous education from an early age, which gives you the courage and strength to practice ethics.

The first fish refers to moral right and wrong, which is easier said than done; The second fish refers to the fact that people must receive a strict education from an early age, and only when they grow up can they grow up to be moral and self-disciplined.

Where's the first fish? Where is the second fish, and where is the third fish? The fourth fish, where's it.

There should be other chapters in this article, right?

You can't see much of that.

Taken literally:

The father of the first fish stayed away from ...... with himMiss;

The father of the second fish was cloned, isn't that two fathers? But is the cloned father a real father? ......Ethics;

The father of the third fish was made into bait, can you eat your father? ......Ethics.

In fact, all three are a kind of family relationship.

The origin of fish is very early, and fish have lived in the ocean since before there were humans in the world. While some ancient species have become extinct over hundreds of millions of years of evolution, others have emerged. According to the literature, fish were first found in the Ordovician strata dating from 400 million years ago, but the fossils of fish were incomplete at that time, and it was not until the late Silurian period that the concept of fossils and early vertebrate relationships was fully obtained.

During the Devonian period, a variety of ancient and modern fish appeared. The Devonian era can be described as both the first age of fish and the heyday of fish, at that time, because there were not many other vertebrates, so some people called Devonian City "the age of fish". In the Cenozoic Era, the fish groups were very diverse, becoming the largest group of vertebrates, and it was the heyday of the development of fish.

Analysis of fossils from the Devonian period shows that ancient fishes can be divided into four main groups: jawless, shieldy, cartilaginous fishes, and bony fishes. Jawless animals are the most abundant in the Silurian and Devonian periods, and are recognized as the earliest vertebrates.

Shield fishes were the first jawed species that flourished during the Devonian period, but were mostly extinct at the end of the period. It has been suggested that cartilaginous fishes and bony fishes evolved from shields in two directions, but there is still no evidence to confirm this. Cartilaginous fishes are considered to be the most "primitive" fishes, but it is generally accepted that cartilaginous fishes and bony fishes are two parallel branches.

The first bony fishes were the ancient cod, which led to the vast majority of existing bony fishes. The typical primitive type of inner nostril fishes in bony fishes is represented by doublefin fish and skeletal scalefish, the latter being the earliest Devonian totalfin fish.

Fish are evolved because fish are in the wall for a long time.

The world's first fish came out of water.