The breeding of the redfish or gold carp dates back to the 4th century BC. of C. in China, where it was considered sacred. Its wide range of colors and varieties and ease of maintenance make it ideal for a newbie’s aquarium.

Characteristics of the redfish?

The goldfish or goldfish, Carassius auratus for connoisseurs, or redfish for almost everyone, is one with the longest aquaristic tradition. The breeding of the redfish dates back to the 4th century BC. of C. 

In millennial China, where it was considered a sacred fish. In the 12th century, the emperor made it his pet, personally taking care of his redfish. Later, in the 16th century, the Japanese took over and began to select mutations that gave rise to the multiple varieties we find today.

Why choose a redfish as a pet

Today the redfish is raised on an industrial scale in many countries and can be seen in countless aquariums because:

  • It is straightforward to maintain and breed.
  • Its cost is very economical.
  • You can find it in many shops.
  • It presents a wide range of colors and varieties.
  • In short: it is ideal for neophytes.

Tips for buying a redfish

If you have decided to acquire specimens of redfish for your home aquarium, these are the points you should look at to make your choice right:

  • Have previously assigned the space to install the aquarium and get the necessary accessories: tank, filter, gravel.
  • Go to a specialized store. Avoid street stalls that do not offer any guarantees.
  • Choose copies of average size, neither too thick nor too thin.
  • Observe that they swim regularly and do not always remain at the bottom or close to the surface.
  • Discard those that present some injury, both on their skin and the fins.

What will you need for the maintenance of the redfish?

  • A tank with a volume depending on the size of the fish: for every centimeter of the fish, you will need about four liters of water.
  • River gravel as a substrate and a bottom filter for water.
  • A neutral pH, between 7 and 7.5; the average water hardness, between 8 and 18 dGH, and the temperature around 18 to 23 ° C. A temperature variation can cause the fish to lose its color irreversibly.
  • A light source is not very intense. You can use waterproof fluorescent lamps or opt for natural lighting. But do not expose the aquarium to direct sunlight because it could heat the water and have lethal effects on the fish.
  • Be accompanied, but not with other species since, although they are friendly fish, they are not very given to tolerate the company of other colleagues.

Redfish food, health, and hygiene

Good nutrition and hygiene are the keys to maintaining the health of redfish. But in stressful situations (overcrowding, temperature changes), diseases such as:

Fin rot: the fin tissue degrades and ends up disappearing due to an infection involving bacteria such as Pseudomonas and Aeromonas; the fins and tail disintegrate so that the redfish can no longer swim. 

A lack of water renewal can be the trigger for this disease. Therefore, it is advisable to consult a specialist about the most appropriate treatment.

Tuberculosis: widespread among aquarium fish but only occasionally becomes fatal. An invasion of Mycobacterium causes the fish to lose its appetite, pale, lose weight rapidly, and present bulging eyes. Sometimes the fish dies without showing any symptoms. Be very careful with this because it can infect people, so wash your hands well after handling fish or accessories.

Characteristics of the redfish?

Columnariasis: one of the symptoms is that whitish villi appear around the mouth, fins, gills, and other areas of the body of the redfish. The culprit of this mess is Flexibacter columnaris, which can spread throughout the body, causing the animal’s death. No waiting: at the slightest indication, turn to a specialist.

Feeding: what does the redfish eat

A rich and varied diet guarantees a long life for the redfish. This omnivore finds insects, mollusks, crustaceans, larvae, and nibbles on aquatic vegetation in the wild. Therefore, you must provide a varied menu in the aquarium that provides all the nutrients. For this, there is prepared food in the form of specific commercial preparations for redfish; it is better that you choose the ones presented in the form of flakes.

Fresh food: from time to time, it is convenient to provide pieces of vegetables, spinach, borage, or carrot zest, which will help it maintain its colors. You can also add boiled egg yolk, pieces of meat, or live food such as larvae.