When we have a pet, we must take into account the care and proper treatment that should be given to that living being that we adopt as part of our family. The fish, are perhaps, one of the alive beings that more care and dedication need; The poor diet as well as the little or poorly prepared maintenance of your aquarium, can make them suffer from different diseases.
Next, we bring you this article so that you can identify these conditions.

The 4 most frequent diseases in aquarium fish

White Point

The parasite that causes this disease very common in aquarium fish is called the External Protozoan Ichthyophthirius Multifiliis and it is so common that all fish, at least once throughout their lives, have contact with it. However, the only fish that are infected are those that suffer from poor diet, stress, live in an overpopulated aquarium or in poor quality waters. These conditions cause the fish to lower its natural defenses and be more prone to the contagion of this disease.
We can identify that our fish is infected with a white spot when we begin to notice small white spots on its skin, especially on its gills; In addition, we can notice abnormal hyperactivity in our fish as they try to swim aggressively in order to get rid of the discomfort in their skin.
The most common treatment to use is to raise the temperature of the tank to 27ºC to hasten the life of the parasite, then the recommended medications can be applied to eliminate them. The recommended antidotes are Formalin and Malachite Green, which should be applied for about a week. However, it is necessary to remember that, when dealing with drugs, it is best to follow the instructions of the veterinarian to the letter so as not to intoxicate the fish.
Also, it is very important to supplement this treatment with a good diet, in order to raise the fish’s defenses.


Yes, as you read, in the aquatic universe there is also this condition and it is very common. The main source of infection are the same fish that carry the germ, those carriers of the bacterium Mycobacterium piscium that is the cause of this disease. On the other hand, the infestation is transmitted by the swallowing of an infected material.
The main symptoms we can observe are: abnormal behavior, movements and slow movement, thinning, loss of appetite, flaking, deformation, loss of color.
Unfortunately, there is no known procedure to treat this condition, so it is necessary to take the necessary precautionary measures to prevent its spread or spread.
One of the main things we must do is to observe in detail that the fish we are going to acquire does not have any of the symptoms mentioned above. We must take special care if we are going to acquire a neon fish, since it is one of the species most prone to the spread of this disease. If we observe in our aquarium some fish with these symptoms, it is necessary to consult with the veterinarian the appropriate form in which we must act to avoid the contagion of the other fish.

Worm Lernaea

Produced by a parasite called Lernaea, which buries its head in the body of the fish remaining attached to it.
The fish carrying this microorganism behave in an unusual way, they can be observed swimming sideways or rubbing their skin against objects or materials found in the aquarium. They usually have inflammations in the epidermis from which threads will appear that will give the impression of being worms, which float upwards and have a light green color.
If this is the case, we should immediately transfer the carrier fish to another fish tank, which should be quarantined. A clamp can be used to remove the worms. In this procedure we must be careful and avoid cutting the worm because, if your head is buried in the fish, we can not eliminate it.
If you see the fish very hurt, you must apply the necessary antiseptics. In your veterinary clinic you can find Metriponate, which must be supplied with the formula of 1.5 mg per 4.5Lts of water.

Argulus or lice

Yes, our fish can also catch these unwanted beings, which have suckers that help them stick to the skin of the fish which they penetrate to feed on their blood and lay their eggs. Later, they will look for other fish to continue feeding.
We will notice the infected fish rubbing their body with the materials that are inside the aquarium to alleviate itching. Also, we can observe small stacked parasites, which have the shape of tiny white dots.
The treatment for this condition is similar to that of Lernaea; Transfer the infected fish to a quarantined fish tank and use a tweezer to eliminate these parasites. Subsequently, we should apply the Metriponate in the dose of 1.5 mg per 4.5 liters of water. Also, we must acquire some chemical to kill the larvae.

Recommendations to avoid diseases of aquarium fish

Remember to connect the filter, therefore, it is convenient to place the fish tank close to a plug. In addition, it is necessary to choose a quality filter, which provides adequate oxygenation and filtration of the water.
Normally, aquariums come equipped with adequate light, however, if you want to install your own lighting, you should check what kind of light is suitable for these spaces, since light for home can generate a lot of heat and cause accidents.
Choose the most natural algae or gravels and avoid choosing those that are very colorful because the fish usually reject it and it is not as healthy for them.
Remember to adapt the aquarium at least 10 days before introducing the first fish, so that the space is in optimal conditions.
It is important to keep the water in the tanks clean, as well as to clean excess substrate. Likewise, it is necessary to keep the filters clean.
Finally, we recommend examining your fish periodically and feeding them with natural and good quality products. If you have any doubt, do not forget to check with the veterinarian.