How to raise black featherfish, why can t featherfish live

It's called the black devil, and the black devil is also called the black feather.

Origin: Brazil in South America. Adults are generally 40 cm long.

Suitable water temperature: 18-25.

Water quality requirements: pH: .

The black devil's body is knife-shaped, flattened laterally, without dorsal fin, the anal fin is wide and developed, the caudal fin is rod-shaped, and there are two white spots on the caudal fin when the juvenile fish are young, but they will degenerate and disappear as they grow. Another brown variety of the same species, called "Coffee Devil".

It has a fierce name, but it has gentle habits and can be mixed with most tropical fish.

The name "Devil" is more of a reference to its mystical properties - black devils love to have nocturnal sex, and most of the time, they hide in the dark environment of densely planted water and grass, rocks, crevices of sunken wood. As a result, no one other than the keeper himself is aware of their presence in the aquarium, and occasionally they swim erect and glide across the aquarium during the day, like a black ghost that suddenly appears.

The black devil's eyes have deteriorated, but he is still able to move through the aquarium with his keen sense of smell, with the help of his wide anal fin and paddle-like tail fin. No fish swims like a black devil, and its dexterity and beauty are like a black feather dancing in the wind! That's what makes the black devil so appealing.

Black devils are sensitive to water quality and prefer to live in slightly acidic clear water. They are extremely athletic and rarely get sick. The black devil likes to eat live animal bait, but he is also very receptive to all kinds of artificial baits.

It is difficult to distinguish between male and female, and they are oviparous fish that are very difficult to reproduce, and they have not been able to reproduce successfully in captivity in aquariums.

This fish is afraid of medicine, and must not add any medicine to the water.

Polyculture with adult swallows should be possible, this fish is nocturnal, a variety of grasses, for it to inhabit during the day.

Do not polyculture with small fish.

I have been raising this fish for more than half a year, and this fish grows very slowly. They only come out at night, and they are very timid, and they only eat frozen bloodworms or red earthworms without feed, which is troublesome and expensive to raise.

Mine is now 18 cm long, and it is not very demanding on water quality, but it must not be hypoxic. I had two of them, and one of them died when I forgot to boil the water pump. Be sure to put something in the tank to keep it hidden. This fish feels very nice and slippery to the touch.

There are several issues to pay attention to when raising this fish:

There must be a place where he can take refuge, such as Shenmu.

2. Reduce the light, if you don't turn on the light, you don't turn on the light, this fish likes the dark, and it is extremely easy to cause a sense of urgency when it is too bright, and it is easy to be scared to death from time to time (the environment is too bright, and there is no place to dodge, so the fish will be extremely weak).

The water quality must be clear enough and the oxygen must be sufficient.

4. Do not mix with small fish such as peacocks, otherwise you will find that peacocks are getting fewer and fewer day by day.

5. Don't put salt and medicine in the water, this fish basically has no resistance and salt resistance.

Because of the water temperature, water quality, light, bait and other reasons do not meet its needs.

The water temperature of the feather fish should be between 23 and 28, and the growth temperature should be 25. The suitable water temperature for juveniles should be between 26-28, and it should not exceed 4 days and nights, otherwise it will affect the survival and growth of juveniles. If you set up a fish tank in a room with no sunlight, you should use a light to irradiate aquatic plants, with a 60-watt incandescent bulb or a 40-watt fluorescent lamp.

Shine for six hours a day. Fish are not easy to starve to death and are prone to swelling to death, or the water quality is corrupted due to excessive bait, which causes the death of Zheng Brigade fish. Therefore, bait must follow the four principles of timing, fixed-point, qualitative and quantitative.

General compound feed is available daily from 9:00 a.m. to 10:00 a.m. and 4:00 p.m

00-5:00 Two feedings are more appropriate. People in the city raise tropical fish.

Tap water is mostly used, which is basically neutral water, and its hardness and pH.

There is no need to worry too much about this because they meet the requirements for raising tropical fish, but when the tap water is used to raise tropical fish, the chlorine must be removed.

The main methods are drying method and chemical method. Empty envy.

The electric eel, also known as the black devil fish, is more commonly known as the "devil's knife" or "black feather" in China. Aggressive, likes to walk at night, is pitch black as ink, swims dexterously, wonderfully, and is extremely fast when hunting.

The whole body is pitch black like ink, the head is pointed, and the caudal fin is elongated like a rod, and the caudal fin has two white rings. It relies on the weak current in the body to feel the flow of water, obstacles, food, etc., and the shape is peculiar. The body shape is relatively flattened, the back is smooth and arc-shaped, the pelvic and anal fins are connected, and the wavy shape reaches the tail, like a black lace outlining the curve of the fish.

1. Water temperature. The water temperature of the black feather fish should be between 23 and 28, and the growth temperature should be 25. The suitable water temperature for juveniles should be between 26-28, and the width of the hole should not exceed 4 during the day and night, otherwise it will affect the survival and growth of juveniles. The water temperature should be kept constant during reproduction, which is more conducive to broodstock production, egg hatching and juvenile growth.

2. Oxygen. The oxygen needed for the growth of the black feather fish is carried out by absorbing the dissolved oxygen in the water through the microvessels in the gills, and then carrying it to all parts of the fish through blood circulation. The carbon dioxide they excrete is also carried out through the microvessels of their gills.

The amount of dissolved oxygen in the water is an important indicator of the growth ring of the black feather fish.

If there is less dissolved oxygen in the water, the black feather fish will float to the surface of the water and the phenomenon of "floating head" will occur; If there is a severe lack of dissolved oxygen in the water, the black feather fish will die due to room rest.

The stocking density of fish is the key issue of whether dissolved oxygen is sufficient, if there is more water and less fish, dissolved oxygen is sufficient, and vice versa, hypoxia will occur. This is not absolute, it depends on other factors. The stocking density of black feather fish should be determined according to the specific situation of each tank.

3. Light. Light is also very important for black featherfish. Light is the most important factor in photosynthesis of all plants.

Without light, aquatic plants can not carry out photosynthesis, but there is a certain limit, too strong light, the branches and leaves of aquatic plants will grow green moss, affecting the photosynthesis of aquatic plants, but the light is too weak or the light time is too short, the branches and leaves of aquatic plants will be yellow and even dead due to too little photosynthesis.

If you set up a fish tank in a room with no sunlight, you should use a light to irradiate aquatic plants, and use a 60-watt incandescent bulb or a 40-watt fluorescent lamp for six hours a day.

If there is no light or the light is too weak, we will not be able to see the scenery in the fish tank, and it will also affect the ornamentation, but the black devil likes a dark environment, so we should take measures such as increasing the planting density of aquatic plants and placing sunken trees under the water to create a comfortable living environment for it.

Fourth, bait feeding.

Some fish lovers often die because they love fish and feed them a variety of excessive bait. As everyone knows, fish are not easy to starve to death and are prone to swelling to death, or fish death due to excessive bait causing water quality to deteriorate. Therefore, bait must follow the four principles of timing, fixed-point, qualitative and quantitative.

General compound feed is available daily from 9:00 a.m. to 10:00 a.m. and 4:00 p.m

00-5:00 Two feedings are more appropriate. Feeding live bait such as fish insects can be done at one time in the morning, and for larvae, it is necessary to ensure that there are rotifers, paramecium or egg yolks and other open bait in the tank.

Note that when feeding the earthworms, they should be suspended in the water in a perforated plastic box so that the fish can eat freely. If you are fed other chopped animal bait, it is better to put people to hang the blue and feed it inside; The bait should be fixed so that the fish can concentrate on feeding to reduce waste; The bait must be fresh and free of spoilage; The amount of feed is sufficient to meet the nutrients required for the growth of fish without excess.

Hello, the main methods are drying method, chemical method. The selenium drying method is to dry the belt under the scorching sun for two days, or to dry it in a place lacking light for 4 to 6 days before it can be used. Chemical method is to use sodium thiosulfate to remove chlorine, the ratio is 1 gram of sodium thiosulfate per 10 kg of water, stirred and dissolved, it can be used.

Water change Tropical fish continue to excrete feces, and the residue of Erf material in the water is also constantly oxidizing and rotting, all of which will produce harmful substances, make the water quality deteriorate, affect the normal breathing of tropical fish, and make the fish sick and even die. Therefore, it is necessary to change the trapped water of tropical fish in a timely manner to keep the water fresh and the fish to grow normally.

The black devil barked again.

Bai black feathers.

Origin: Badusi, South America. The body length of an adult fish is 40 cm. dao

Chinese scientific name copy.

Thread feathers attack electric eels.

Latin scientific name. Apteronotus albifrons is also known as the black devil, the bareback electric eel, the devil's knife, the feather knife.

The black devil is an egg-living tropical fish that prefers a dark environment, suitable for aquariums with dense aquatic plants, and is best kept alone after growing into an adult fish.

The water temperature of the black devil's life should be between 23 and 28, and the growth temperature should be 25; The suitable water temperature for juveniles should be between 26-28, and the day and night should not exceed 4, otherwise it will affect the survival and growth of juveniles.

It's called the black devil, and the black devil is also called the black feather.

Origin: Brazil in South America. Adults are generally 40 cm long.

Good feeding, trapped in water for 5 days, put some stones in the tank, change the water every three days, and change one-third each time.