How to choose an aquarium

Pet Care

When choosing an aquarium for our fish, we must take into account a series of factors that depend on issues such as the frequency of maintenance that this will require, the costs that it will entail and the type of fish we may have. In this post we give you all the keys of how to choose an aquarium but for more detailed info, you can visit


The size of the aquarium will depend on the amount of fish we can later have. We know that size is not always something that depends only on our taste, but the place we have in our house for fish. If we opt for a small aquarium of 20 liters, we can only have one fish although the ideal is that we have at least 40 liters of water for a fish. It is recommended that the aquarium be as large as possible, although we must bear in mind that the larger, the longer the water change will take us. You should also be aware that the aquarium size is capable of affecting the growth of fish. Some studies suggest that for the same type, growth rates may differ by a few percent if the aquarium size used is not the same.

Water class

There are freshwater or saltwater aquariums. The latter are the most natural and allow us to include a wide variety of fish, although they may not be the most suitable for a beginner, since they are more complex in terms of maintenance.

Water temperature (in the case of fresh water)

The temperature of the water is another element that we must attend when choosing the aquarium. If we opt for a cold water aquarium, the infrastructure will be simpler. On the other hand, if we opt for another hot water we will have to acquire a thermostat to control the temperature to the degrees that we want. At this point, it should be noted that cold water fish are usually larger than hot water fish, which will require a larger aquarium.


And as always, the price is another very important factor when it comes to any purchase. In the case of the aquarium, we must assess if we opt for a basic low price to which we will then have to buy many accessories, or if it is more advisable to play safe and buy an aquarium that comes with everything that we will need.

This article is merely informative, even though we do not have the power to prescribe any veterinary treatment or make any kind of diagnosis. We invite you to take your pet to the veterinarian in case of any type of condition or discomfort.