One of the freshwater fish that we can introduce in our aquarium, if we are interested in this type of water for our pond it is the Gambusia.
This small silver-colored fish, also known as mosquito fish due to its speed and lightness, has a peculiarity between genders, and that is that the females have one of their rear fins much more elongated and rounded than that of the male, which is pointed. and long.
Prawn fish are able to change the color of their body, in such a way that it matches and matches where they are, so if your aquarium has a lot of aquatic vegetation, your little fish will change its color slightly to match the decoration of your fish tank.
These fish are native to the United States, where they are generally found, swimming in rivers and streams. In addition to being, as we already mentioned, freshwater fish, these animals can survive very varied temperatures, from withstanding freezing temperatures below zero, to withstanding and surviving the highest temperatures of more than 35 degrees Celsius.
It should be noted that after mating, the female is the one who will take care of the offspring, and unlike many fish that lay eggs, she gives birth to her young. Once they are born, she leaves them alone to take care of themselves and learn to take care of predators.
If you want to have one of this species in your freshwater aquarium, it is important to remember that their diet is based on small larvae and insects, although you can also feed them with algae and other types of green products.
I recommend that for more information about these animals, and their care, consult a specialist in a pet store who will be able to help you much better to maintain your aquarium and these little fish.