The popularity of goldfish is believed to date back approximately 1500 years, when they were developed in China and subsequently became popular among pet owners for their attractiveness, elegance, simplicity, and longevity.

The goldfish is a carp-derived species that has been bred in captivity and is typically kept as an ornament.

Breeders have been able to collect approximately 300 different colors, sizes, and shapes of their species throughout the years.

The color palette is extremely broad, ranging from red-golden to black with a blue tint. All fish, on the other hand, have one feature in common: the abdomen is usually somewhat lighter than the main color. The average size of an aquarium goldfish is 15-20 centimeters long.

The lifespan of a goldfish in captivity is disputed. Some aquarists believe that fish live for no more than three to four years, while others think that the greatest age is 25-35 years. The debate was settled when Tish, a goldfish who lived to be 43 years old, died in her aquarium.

How and what to feed goldfish in an aquarium?

Goldfish are omnivores, so you may feed them on a variety of foods to keep them healthy. You can feed goldfish various types of food to meet their nutritional needs:

  • Begin with an all-inclusive list of requirements. Then, to improve the chances that the job pays off;
  • Bloodworm, tubule, cortetra, daphnia, brine shrimp, rotifer, earthworms – all of these are live food. It has a significant amount of protein in it – bloodworm, tubule, cortetra, daphnia, brine shrimp and rotifer;
  • The earthworm, water lettuce, water hyacinth, duckweed, naiad, wolfia, riccia, hornwort, and vallisneria are all edible plants.

The diet of goldfish in an aquarium will be complemented with the following:

  • Salad of finely chopped lettuce, nettle, spinach, dandelion, cabbage, plantain, parsley, and dill;
  • Some sources say to put all the ingredients in a large mixing container, cover it with saran wrap, and smash them with a fork;
  • Plump, firm calamari is a popular choice for this dish. Other ingredients include chopped calamari (squid, shrimp, lean fish fillets), fresh mussels, and clams;
  • buckwheat, semolina or millet porridge, cooked without salt and well washed from mucus; spirulina; bread crumb.

If the food is moist, such as dry food, it should be eaten in 5-10 minutes; if it’s live or plant food, 10-20 minutes. To limit the spread of pollutants in your aquarium, remove uneaten stuff right away.

One thing to keep in mind is that before pouring dry food into the aquarium, soak it for a few seconds, and feed it in the form of granules for 10-20 seconds. This is essential since fish swallow water as well as food, resulting in an increase in volume in the stomach.

Goldfish are omnivores that enjoy eating, making them prone to overindulgence. Feed them just twice a day: in the morning and at night, with distinct types of food. A pinch between two fingers is the greatest quantity to feed them. Feeding times should be set — so that the fish do not have time to grow hungry.

How to properly care for and maintain goldfish?

The goldfish are fickle animals, so stick to certain regulations.

  • Choose an aquarium depending on the fish’s body size and shape. For long-bodied species with a length of more than 30 cm, aquariums with a water volume of at least 200 liters are needed. These fish should be kept separate from their smaller relatives. It is recommended that you utilize traditional rectangular aquariums with a water column of no greater.
  • Goldfish do not get along with other species. Even when two fish are equal in size, you must choose neighbors for telescopes and bubble eyes carefully since telescopes can be neglected by more active individuals, and bubble eyes may just be damaged.
  • Temperature control is crucial for goldfish in aquariums. Long-bodied fish like to swim about at water temperatures ranging from 17 to 26 degrees Celsius, and short-bodied species should be maintained at a temperature of 21 to 29 degrees Celsius. This may necessitate the usage of additional heating equipment.

Because goldfish require a great deal of oxygen in the water, a filter and compressor are used in the aquarium. There should be constant aeration.

It’s critical to get the math right when it comes to goldfish. Goldfish are sociable animals, so make sure you have the correct number of people in your aquarium. There is an unwritten rule that one small fish requires at least 20 liters of water. And here’s how to do it: multiply 1 cm by 3 liters

Decorating the aquarium

When it comes to aquarium decorating, be cautious and modest. It is better to keep things simple, but the more you spend the larger your fish will grow. Large objects will prevent your fish from swimming freely. Bubble-eyes or veil-tails are never adorned with anything else other than aquatic plants in captivity.

Keep in mind that the fish will eat the plants you select. As a result, if you don’t want aquarium inhabitants to consume plants, go for plants with hard leaves. If you wish to add another food source to your diet, grow edibles.

Diversify the underwater world by adding plants in pots: fish adore digging in the dirt, so you’ll keep their roots intact. Select a soil that’s either rather coarse or extremely fine. This will prevent your pet from swallowing it.

Features of keeping in a round aquarium

A rectangular aquarium is simple to set up, doesn’t take up much room, and looks fantastic in any décor. It has its own quirks, though.

In a round aquarium, the water’s surface area is limited, resulting in an oxygen scarcity. As a result, a specialized compressor dubbed “for round aquariums” is required.

A cramped aquarium with a capacity of 5 liters is only suitable for one little fish, whereas it would be a cell rather than a home for everyone else. It’s extremely hard to provide such an aquarium with the right equipment – a filter and a compressor. A volume of 20 liters is more than enough to grow plants and house several fish.

Remember that plants need light while planting them. The spectrum of conventional incandescent bulbs is as close to sunlight as possible, making them ideal for this purpose. The optimum brightness should be 1-2 watts per liter of water. If you buy an aquarium with lighting in the kit, it would be a fantastic solution.

The round form restricts fish movement somewhat, while the refraction of light creates a lens effect that may be harmful to their health. As a result, filling a round aquarium with tiny fish in minimal quantities is essential.

In content, goldfish are rather modest. You may make your own underwater world with a little effort, which you will enjoy for many years to come.