Why are the newborn black Mary fish all grouped together on their stomachs?

There are four types of Harada for this phenomenon:

1. Water quality changes too much, and water quality generally refers to the pH of water.

Due to the sudden change in the pH of the water, the fish will sink to the bottom of the tank and do not like to swim.

2. If the temperature is too low, this phenomenon will also occur.

2. Pathological reflection, mainly enteritis.

4. The light is too strong, so that the fish are afraid of light and dare not swim.

Mary Fish. In general, it may be related to fright, labor, rest, not adapting to the environment, poor water quality, unsuitable bait, pH imbalance, large change in water temperature, lack of oxygen, ammonia poisoning or fish disease, etc.

Mary fish is more timid by nature, and will have a process of adapting to the environment when it arrives in a new environment, at this time it may lie on the tank, pile up, etc. If the new fish is not adapted to the environment, you can turn off the lights and rest, do not have to feed for the first day or two, keep the water quality good and stable, and then feed normally after it adapts to the environment.

If it is a water quality problem, it is necessary to check whether the water temperature is too low, whether the water exchange and the temperature difference between the water exchange are too large, and whether the water quality has ammonia nitrogen.

Chlorine exceeded, whether the pH of the water body is unsuitable, water quality aging deteriorates, etc., and then adjust it in time according to the actual situation.

Fish oviparous and viviparous, no matter what kind of seedlings after birth have a process of adapting to the external environment, the time will not be too long, the seedlings at this time have no protective ability to be vulnerable to the attack of big fish, pay attention to prevention.

It should be caused by poor feeding conditions and poor water temperature and quality. It is recommended to measure the water temperature first to see if it meets the feeding requirements. If it is too low, adjust it slowly in time.

In addition, if the temperature is normal, it is likely that the chlorine content, ammonia content, nitrite content and so on of the water quality exceed the standard. It needs to be checked one by one.

When the baby fish is just born, there will be something like an egg yolk in the stomach, so don't feed it, otherwise the belly will burst even if it survives.

After 3 days, feed some cooked egg yolks. Pay attention to the water quality, change it immediately if it is turbid, and change it for about one-third to one-half at a time.

Black Mary is also known as Black Morley Family. （blackmolly/mollienesialatipinna）。It is a freshwater ornamental fish of the order Cypriniforma, a suborder of cyprinidonts, a family of flowers, and a species of freshwater ornamental fish that has been artificially bred.

It is found in Mexico. A small tropical fish bred by crossing the highfin Maryfish. The body is fusiformal, 5 6 cm long, both male and female are black and shiny, unique and lovely.

Black Mary fish does not have strict requirements for water quality, prefers water containing trace amounts of salt, and the suitable water temperature is 20 24. If the temperature is low for a long time, it is easy to get sick.

For example, when the water temperature is below 18, it is susceptible to water mold. It has miscellaneous food habits and can scrape the algae and aquatic plants on the wall of the tank, so it has the reputation of "cleaner" of the aquarium. It has a mild temperament and is easy to mix.

Because black Mary fish prefer weakly alkaline hard water, it is not suitable for polyculture with tropical fish of the aliphaid family. Juveniles can be fed live bait such as small fleas. It is sexually mature in 5 months, and the reproductive cycle is about 35 days.

Eat the small red red dots that feed the "fish lion" that swim are best for small fish.

Eating, small fish are born to eat.

First of all, look at the water temperature, which generally needs to be above 20 degrees. If the water temperature is low, the fish will not be active.

If this situation occurs after a long time in the tank, it is estimated that it is tail shrinkage:

Phenomenon: The angle of the tail fin is significantly smaller, and when it is severe, it shrinks into a cone, and the fish only shakes its body constantly, and likes to gather in the corner of the water surface or the bottom of the water, and the diseased fish will not die quickly, but it will affect the feeding and development of the lesion.

**: The water body of the fish tank is narrow, the fish are crowded, the residual bait is more envious and washed, and the water is not changed frequently, so a large number of water molds are breeded.

Susceptible fish age: one or two months in size.

**: Or use sea salt**, sprinkle salt (5 thousandths) on the whole tank. Increase the water temperature to 28-30 degrees. If necessary, yellow powder can also be applied to prevent secondary bacterial infections.