There are two initial classifications of fish: freshwater or marine — saltwater. For this reason, both need to live in different places, due to the level of salinity in the aquarium. This factor is measured with a hydrometer or refractometer, as salt changes the density of water.
Freshwater aquariums can have a very variable pH value, depending on the species, so it can vary in the range between 5 and 9. Marine aquariums, on the other hand, reach the appropriate pH when they are in the range between 8.1 and 8.5. These numbers are extremely important to maintain the quality of water and life of your pets.
Some fish are demanding and need warm aquariums. There is a huge variety of pets with this type of natural habitat, and one of them will surely delight you. However, it is very important to know the type of fish in order to maintain the proper and comfortable container temperature.
To facilitate the creation of ornamental fish, it is also essential that you choose species that are less territorial and that coexist well with other small fish. Now, we’re going to show you a little bit more about them.