The cold water fish are kept in the aquarium without the need for include heater. They are those that live in room temperature. That is why they are perfect for those who want to start in this field without being a specialist.
There is a great variety de peces of very cold water characteristic for being reds but this one has several variables. Although we mainly find two species. Goldfish (red-orange fish) or carp and Carpakoi.
Goldfish: It is the best known red-orange fish, they are the typical ones that we see in a round fish tank, it is not its best habitat because it will grow better in an aquarium. It is not very selective for food, but they do eat constantly therefore you have to be very careful with natural plants, as it could eat them.
carpakoi: They are very resistant and also have a variety of colors which makes them even more striking, they can reach 50 cm in length, so we have to take into account the length of the aquarium. Their care is very basic.
Chinese Neon: Surely you know them because they are those small fish that we see in stores so bright and very striking, their presence is a visual pleasure. However, it must be borne in mind that they must be kept in a group of 7.
Pink Barbel: This type of fish withstands variations in temperature, so it is very easy to maintain. They are intense reds with green tones and black spots on their fins, a very striking specimen to give life to the aquarium.
Telescopic: This type of fish is mainly characterized by its huge bulging eyes that protrude from the head, short and rounded body. Within this species you can find different variations. It is easy to care for and adapts very well to living together.
Betta splendens: It is another of the fish that are very beautiful, for having their long fins as well as a combination of different colors. Its main problem is that it is very aggressive and makes it difficult to coexist with other fish.
Loach Dojo y Bubble They are two fish that are not aggressive with the rest of the inhabitants of the aquarium and are very resistant, yes, they compete for food.