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Bubble-eyed fish: Care, Tank Mates, Breeding & More

All about the original bubble-eyed fish

The bubble-eyed fish had its first appearance in China for several years causing amazement for its strange shape. Over the years it has become a fish for the decoration of community fish tanks requiring in turn special care for its delicate fluid bags that it has under the eyes. In some cases this problem can expand at the extremes causing a very low vision.

Bubble eye goldfish

Natural habitat of bubble-eyed fish

Bubble-eyed fishlike to live most of the time in warm-water aquariums as they do not resist sudden changes. They also like to swim comfortably in areas full of natural vegetation such as fine and tall plants, however you have to be very careful with what is put inside the aquarium because they have sensitive skin can easily break to death.

Nowadays you can buy a variety of fish but before opting for one of its kind it is better to find out which are those that require strict care, otherwise you can fail in the attempt. In this case you do not have to worry because despite being vulnerable they have a calm behavior. Many of this species usually hide in their habitat and go out at night only to feed so as not to get hurt.

Because it is a fish of poor visibility its swimming is reduced so it is recommended to give it food at small distances. You also need a balanced diet with many nutrients so that you can strengthen your immune system and thus avoid contracting possible diseases, especially around your delicate eyes.

General characteristics

The bubble-eyed fish is a somewhat peculiar genus and this name has been dominated since it appeared due to its jumping characteristics that are located just below its eyes. By having an elongated body these fish require a wide space to not stress since this symptom can cause their defenses to go down. So with special attention your fish can be safe and in the best hands.

Bubble eye fish care

Surely you have ever observed a bubble-eyed fish for its striking shape, but what you will have noticed most is its fluid-filled sacs that are under its eyes. This species first had its appearance in China during 1908 and has since been recommended for decorating community aquariums. Due to its vulnerable characteristics, it requires great care since it can be easily injured.

Basic care

Due to the characteristics of their eyes, bubble-eyed fish require more specific attention compared to other species. Therefore it is not convenient to place inside the aquarium pointed, sharp or heavy ornaments since the balls of your eyes can be seriously damaged. In this case the most advisable thing is to surround it with enough vegetation especially with long and thin leaves that allow it to swim slightly.

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Its behavior is passive so most of the time it remains in its habitat, however it is best to keep it in a fish tank or aquarium with a rounded and high shape. Having some visual problems can cause you to get hurt with corners. Appreciate the company of other species of slow swimming with reduced vision so that they do not gain advantage especially when it comes to their feeding.

Inside the aquarium you can place other genera such as orandas or telescopes, these animals are similar to the bubble-eyed fish so it will not cause any harm. As for food, it is important that they maintain a balanced and rich diet to better stimulate their development, you should also give it as close as possible so that it does not make so much effort to get to where the food is.

How to care for a bubble-eyed fish

These fish usually have an elongated body with a striking color, unfortunately it does not have a dorsal fin so their swimming is slower compared to others. For greater care it is important that the gravel of the bottom is round, in this way it will be possible to prevent the eyes from being severely damaged. In the gua they can measure up to 12 cm so they must have a large space.

Baby bubble-eyed fish

The bubble-eyed fish can grow in the aquarium up to 12 centimeters depending on the care given to it during its development. Like other species it is characterized by its anal orifice, the females for their part have a slight protrusion outwards and the males always keep it inward. When they reproduce eggs, the females have a wider stomach and the males have white spots on the opercula of the gills.

Way of reproduction of bubble-eyed fish

In this species it is easier to observe the way of reproduction because everything begins when the males chase the female all the time. After their courtship they begin to hit the abdomen so that they can expel the eggs, so it can be said that the laying is the same as that of all the carassius. So it is important to have this species in a large aquarium so that the calf is born in a comfortable area where they can swim to their liking.

The most advisable thing is to opt for an aquarium between 60 and 80l to put the couple while laying the egg. Once this event occurs, they should be away from the parents to avoid eating them, then it only remains to wait for the hatching that lasts between 24 to 30 hours. When the little fish are born, it will be necessary to wait approximately five days so that they can swim..

Then it will be necessary to take care of them as is done with any other species, making sure that they are fed a balanced and rich diet to strengthen the immune system. With these basic tips you will prevent the breeding of the bubble-eyed fish from contracting diseases, in addition to contributing to a better quality of life.

Tips for taking care of your young

Bubble-eyed fish are born all the life of the fish and as the months go by they gain their normal size to make their skin thinner. For this reason it becomes a delicate species prone to bursting. This species is not recommended to beginners due to the precise care they require, in addition they are more prone to various diseases.

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Types of bubble-eyed fish

Most people love the variety of goldfish because of their striking color and the strange shape of their eyes that make them look unnatural. Such is the case of bubble-eyed fish, a very difficult species to care for since it has bags of fluid under the eyes that prevents it from seeing clearly around it. For this reason it is not recommended for beginners as they may fail in the attempt.

What types of bubble-eyed fish exist

Within its genre there are varieties of colors so you can choose the one you like the most, among the most adopted is black with red, chocolate, blue, red and orange. Depending on the care given to the bubble-eyed fish, it can have a life of up to 10 years, so it must take perfect care of its diet and the temperature of the water so as not to develop diseases.

This species usually develops throughout the life of the fish and the more they grow, their skin becomes thinner so they are exposed to injury easily. To avoid accidents, it is best to opt for a round and tall aquarium so that it has a large area when swimming.

It is not advisable to place heavy or pointed elements in the water since these fish can collide with them and mainly damage the eyes. Because of their vulnerabilities it is better to throw the food at a short distance so that it does not go unnoticed, you must also make sure that they have eaten everything to give them another portion after a long time.

Recommendations to take care of your types

As for the compatibility with other fish of other species, the most appropriate thing is that the bubble-eyed fish coexists with another genus that have a slow swim and reduced vision such as the orands or the telescope. Otherwise, others could have a great advantage when feeding, so their defenses could be affected by not having the necessary source to stay healthy.

Aquariums for bubble-eyed fish


The choice of an aquarium is important before opting for any of the variety of species that exist, everything will depend on the number of specimens you want to have and the care that is required. For bubble eye fish you need a round aquarium so that at the time of swimming you can not damage the fluid bags that you have just under your eyes.

Fish tank for bubble-eyed fish

Eye, this species is not recommended for beginners since its care must be strict and constant. So for people who are more involved in the subject should know that you have to be very careful with the elements that are placed inside the aquarium, they should not be large or much less pointed since this can only cause severe damage to the eyes of these animals

The bubble eye fish likes to live in neutral waters preferably alkaline,the advantage is that they are not so demanding with the parameters of the water: a pH of 7-5.5 is needed either higher or lower and a GH between 10 and 18dGH. It also has the ability to withstand small variations both lower and higher and the most important thing is that it requires good oxygenation so the changes must be made once a week.

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There are those who by decorating the aquarium place plants with inadequate leaves which can cause the bubbles of these fish to explode while swimming among them. So before placing any natural vegetation as artificial should be carefully checked to see that it does not have sharp or pointed edges, stones, logs, among other decorative elements.

Aquarium elements that should be included

For each bubble-eyed fish inside the fish tank there must be an area with natural planting, they can be thin and high leaves to allow you to swim with peace of mind. It is necessary to avoid as much as possible to join it with other species of fast swimming such as the comet or shubunkin since it can hurt it and even steal its food every time you give it to it.

Feeding the bubble-eyed fish

The bubble-eyed fish is a very delicate species due to the fluid bags that are located under its eyes, an aspect that prevents it from swimming freely in the water. That is why you need to give him a rich and nourished diet to strengthen every part of his small body and thus prevent him from contracting any disease. Although their eyes appear normal, they have difficulty swimming quickly, seeing their food, and looking around.

What foods Bubble-eyed fish eat

Bubble-eyed fish are not very active, so most of the time they are swept away by the current. For this reason it is necessary to release the supplies at a short distance so that it does not go unnoticed, although in reality it is a devourer that easily accepts all food sources but that are as long as in small portions.

They usually feed on scales or pallets but both must be plant-based so that your body can digest it correctly. The right amount will depend on the temperature of the water, so it is important to adjust the amount of food according to the season so that the fish do not get sick. It is convenient to give them the food three times a day combining the food so that they do not get bored of the same.

Due to their low visibility this genus is an emphasis when eating, not seeing clearly they are at a disadvantage with other species so it is necessary to always verify that they feed correctly, otherwise their defenses can be seriously affected. Remember that the diet should be varied and better if they contain minerals, vitamins and proteins for stable health.

How to feed a bubble-eyed fish

The bubble-eyed fish most of the time is kept hidden in its habitat and at night it goes out to eat so as not to damage the fluid bags of its eyes. So the most convenient thing is to leave the food near your area so that you do not make so much effort to reach your destination.

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