▷ Blue rainbow fish in the aquarium | All information and details

Datasheet Blue Rainbow Fish

German name:
Blue Rainbow Fish

Scientific name:
Melanotaenia lacustris

Origin:
Papua New Guinea

Size:
up to 10 cm

Aquarium

Length:
Length from 100 cm width

Contents:
from 100 liters

water values

Temperature:
20°- 25° C

pH:
7.5 – 8.5

GH:
up to 10° dH

Behave

Area:
upper area

Lining:
Live, frozen, flake and green fodder

Behave:
peaceful, prefers species tanks

Number:
8-12 animals, 2-3 females per male

Difficulty level:
Beginner

Rainbow fish are popular aquarium inhabitants. The blue rainbowfish, also known as the turquoise rainbowfish, is a slow-growing fish that tends to stay small. It comes from Papua New Guinea and prefers to live in pure species tanks.

Klaus Rudloff, Melanotaenia lacustris, CC BY-SA 4.0

gender differences

The males of the blue rainbow fish are more vividly colored than the females. They also get bigger and can reach a size of up to 10 cm. They also grow taller than their female counterparts. With the help of a varied diet, especially the feeding of live food, the females can also develop a beautiful blue coloration.

breed

For the successful breeding of the blue rainbow fish, two to three females per male should be kept in the group. Rainbow fish are among the permanent spawners. They spawn over several days and lay their eggs in the moss. Java moss is particularly recommended for breeding success. The small eggs stick there without any problems. When the male is ready to courtship, he is particularly beautifully colored. It looks for a female that is ready to spawn and swims with her in the moss. This is where the eggs are laid.

Because rainbowfish tend to eat the eggs afterwards, it’s a good idea to attempt breeding in a nursery tank and then remove the parents from the tank. The larvae hatch after 5-12 days. They are best fed with dust food.

socialization

Although the blue rainbow fish prefers to live in the species tank, it can also be socialized with other fish. For this, the aquarium should be of a corresponding size so that the fish species can avoid each other. When choosing roommates, you should avoid fish species that live in the upper and middle areas of the tank, because this area belongs to the rainbow fish.

What diseases are typical for rainbow fish?

The blue rainbow fish is particularly prone to stress. If he is exposed to stressful situations more often, he can develop ulcers. Due to frequent water changes and small temperature fluctuations in the tank, the animals are very easy to care for.