Where does the fish s poop come from?

Discharged from the small eye in the tail.

To change the water, use a hose to suck out the stolen goods in the water with the water according to the siphon principle, and then add the water with the same or similar water quality, generally replace one-third or one-half of the old water, and do not use "full water exchange" unless necessary; You can also install electric filtration equipment in the fish tank, connect to the power supply, and work automatically to filter out large particles of debris in the water, and the filter material needs to be cleaned in time.

Biological method: lay the bottom sand (marble, black crystal sand, river sand or fairy soil, etc.) in the fish tank, and then plant a certain amount of aquatic plants, in the case of fish stocking density is not very large, the bottom sand and aquatic plants can precipitate and adsorb fish excrement, the beneficial bacteria in the water environment can decompose the fish excrement, and the aquatic plants can absorb and use the decomposition products of beneficial bacteria again. If the stocking density of the fish tank is large, the method of physical filtration can be combined.

Sponge filter, the sponge also provides a habitat for beneficial bacteria in the case of a small amount of physical adsorption filtration, decomposes organic matter in the water, and is suitable for fish that like quiet, low-density feeding.

Fish farming method]:

If you don't have the conditions to keep the water temperature in the tank, you should always give the goldfish enough sunlight on this cold winter day.

Put some white rice stones and some aquatic plants in the fish tank, but remember that the aquatic plants must be appropriate.

In terms of feeding, you can throw some fish insects or white flour steamed buns, but you should feed less and frequently each time.

Precautions]:

The weather is sunny, the day is warm and the wind is warm, the dissolved oxygen in the water is sufficient, and when the water temperature is suitable, you can put more bait appropriately.

When the water quality is thin and the fish have a strong appetite, you can put more bait.

If the fish is sick, or the species is delicate and precious, you should put less coarse bait and some fine bait instead.

To distinguish how hungry and saturated the goldfish is, the digestion and absorption can be distinguished according to the color of the fish feces. If the fish feces are green, brown or black, it means that the fish is suitable for feeding and is well absorbed. If the fish droppings are white, it is a sign that the fish is overfed.

Fish with a lot of activity and strong vitality can feed more. On the contrary, vote less; If the goldfish is finished within half an hour and is still foraging, it means that the feeding is too little, and it can be increased the next day.

Summary. Pro, stool, refers to the excretion of relics in the large intestine of a person or animal. A quarter of the stool is water, and the rest is mostly proteins, inorganics, fats, undigested dietary fiber, dehydrated digestive juice residues, and cells shed from the intestines and dead bacteria, as well as vitamin K and vitamin B.

Poop in the language of life is the right for babies and young children"Stool"Oh.

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There are two points as to why fish poop floats on the surface of the water, 1 It is related to feeding. 2. If the fish has enteritis, if it is a cold-water fish, add coarse salt, seawater salt to itch, or add fish medicine oxytetracycline according to the instructions, and change the water by one-third after 3 days until the condition improves. There is also a way to feed garlic to the fish often, this vertical answer method does not hurt the fish wide fiber do, but there is a shortcoming that the taste is not very good, tropical fish add salt to heat, the temperature is carefully balanced to increase the temperature 2-3 times higher than the previous temperature for a few days, if it is not good, add oxytetracycline powder according to the instructions to put Oh.

Pro, stool, refers to the excretion of relics from the large intestine of a person or animal. A quarter of the stool is water, and the rest is mostly protein, inorganics, fats, undigested dietary fiber, dehydrated remnants of digested silver liquid, and cells shed from the intestines and dead bacteria, as well as vitamin K and vitamin B. In the language of life, there is a quarrel and a poop, which is the right for babies and young children"Stool"Oh.

Fish feces are organic matter and therefore can be broken down by heterotrophic bacteria. After decomposition, ammonia nitrogen and nitrite are produced, which are converted into nitrate by nitrifying bacteria, thus preventing fish from being poisoned.

Therefore, as long as the nitrification system in the fish tank is established, the manure will not pollute the water quality, unless the feeding density is too large and the excrement is too much, at this time, the water needs to be changed and cleaned up, and the feeding amount is controlled at normal times.

Methods for culturing bacteria in fish tanks:

A perfectly healthy fish tank must be free of bacteria, build a flora, bacteria do not need to be deliberately added, as long as the conditions are right they will generate on their own, even the tap water you drink contains probiotics.

If the bacteria house is not provided, then it will attach to the fish tank wall (the layer that is slippery to the touch on the fish tank wall with your hand is nitrifying bacteria), sunken wood, aquatic plants, and landscaping stones. But if you're a bare tank, the fish tank walls don't provide enough shelter.

Fish have their own excretory system, and unlike mammals, they are excreted mainly by the kidneys and gills.

Fish are the oldest vertebrates. Some offspring of hybrids with different chromosome numbers[1] are still fertile. They inhabit almost every aquatic environment on Earth, from freshwater lakes and rivers to saltwater seas and oceans.

Fishes are ectothermic vertebrates that live in water all year round, breathe with gills, and use fins to support balance and movement of the body. According to the statistics of the late Canadian scholars, there are 24,618 species of fish in the world, accounting for more than half of the named vertebrates, and new species of fish are constantly being discovered, with an average of about 150 species per year, and more than 1,500 species should have increased in more than ten years, and there are currently about 32,100 species of fish that have been named in the world. It is the most primitive and lowest-level group in the subphylum Vertebrates.

Fish meat is rich in animal protein and phosphorus, rich in nutrition, delicious, easy to be digested and absorbed by the human body, and has a significant role in the development of human physical strength and intelligence. Other parts of the fish body can be made into cod liver oil, fish gelatin, fish meal, etc. Some fish, such as goldfish and tropical fish, have a variety of bodies and bright colors, and have high ornamental value.

China has a long coastline, many rivers and lakes, and a wide variety of fish. According to the survey, there are more than 1,000 kinds of freshwater fish in China, and the famous "four big fish" (herring, grass carp, silver carp, bighead carp) and carp, crucian carp are the main excellent freshwater fish species in China; There are about 2,000 species of marine fish in China that are known to contain wax, and the common ones are hairtail, large yellow croaker, salmon, etc.