One of my little colored fish sank in the water and couldn t get up

No, it's all carbon dioxide that goes in, the fish is like that, you can't sit on anything, just wait for the miracle quietly, if it goes, just bury it well.

Fish farming is a diligent job, and the water should be changed regularly, and the water should be dried at least three days in advance. Because the chlorine in the water is too heavy now, don't change the water every time, just change one-third, change it frequently, and use a straw to pump out the fish feces at the bottom of the tank. Don't feed too much, just feed enough.

It is not possible to blow air into it to add oxygen. All I exhale out of my mouth is carbon dioxide. To buy an oxygenator.

If it's a tropical fish, buy a heating rod. In short, fish farming should slowly explore the characteristics of fish, not all fish can be polycultured. Remember the name of the fish when selling it, and come back to the Internet to check its cultivation method and characteristics.

It's going to get better slowly.

1.Ensure that there is a high level of dissolved oxygen in the water.

2.When changing the water, you must pay attention to the water temperature to be consistent.

3.Then use some medicine and take a medicated bath. (The symptoms are not clear, it is not good to instruct you what medicine to use, but you can try a booster lotus).

4.To enhance the efficacy, intramuscular injections (antibiotics) are recommended.

It's useless It's definitely useless, the main thing is to disinfect.

Cute and nimble fish swim leisurely in the water.

Cute little fish swim happily.

The good-looking little fish swim carefree.

Happily the fish swim in boredom.

Agile fish swim freely in the water.

Coca-Cola took a look at the frontal lobe.

The fish did not starve to death, only the ones that survived, and the water should not be changed too frequently, once a week is fine, and the tap water is best dried in the sun.

What are the species of fish?

Eat it every other day, change the water every seven days or half a month, depending on how small your fish is.

I hope you are satisfied with my answer.

A small fish swims in the water, lonely and worried; Two small fish swim in the water, happy and happy to be friends; Three small fish swim in the water, and play a game.

Goldfish are not easy to raise, especially when changing the water, you must pay attention!

It is best to wait until the water is dirty, pour out most of the water, and if it is a tropical fish, let the new tap water dry for two days, which is called filtration, and just mix the remaining old water with the new water. (Goldfish should also work) because if you use a new one directly, the squeamish little fish may hang up

I always use fresh water, and I raise tropical fish, and I change a third of the water at a time, and I put them in cups and cups, and I have to be gentle.

Pick up the water for one night, pump out the old water, and replace it with new water.

1.Anoxia.

2.The water quality is not good.

3.Play. 4.Habits of their own.

5.Fight and flee.

Situation 1: Hypoxia.

Situation 2: The water quality is too poor.

Scenario 3: Imminent natural disaster, e.g. tsunami,**.

First of all, the swim bladder can be inflated, and through inflation, the gravity and buoyancy of the fish can be balanced, and the fish can stay anywhere in the water.

Then there is the fin stroke, which moves forward and backward through the reaction force of the water.

The dorsal fin and tail are used to control the direction of travel.

The small fish swims in the water by its gills, fins, and tail.

Because it only has gills, and the gills can't breathe air directly, they can only breathe in water.

Fish have to breathe with their gills, and there is pressure in the water.

Because there's oxygen in the water, there's water.

It can't be changed often, and the water should be picked up a few days in advance, and then put it for two days before changing the fish, otherwise it will die.

Generally, change it once a week, if you don't have anything in the tank, just change it once every 3 days, and it is best to only change the water about 1 3.

First of all, it depends on how big your tank is and whether the bait you feed every day seriously pollutes the water quality. If the water quality is good, you can change the water after a long time. If you use well water at home, you can use it on the spot.

Goldfish can be fed once every two to three days, and the appropriate amount of fish food can be done, not too much.

You can consider buying a few snapdragons, but some goldfish will gnaw on them, so they should be replaced frequently to ensure an aesthetic effect.

Before the fish tank is used, it is filled with water and exposed to the sun for a week, and then the water is changed, and the water should also ensure that it is not used to release the fish if it is not just changed. Generally, it is necessary to change all the water once a month at most.