The variety of fish tanks available for sale these days is truly daunting, especially if you are just starting out. The simplest advice I can give you is to get the best aquarium you can buy at this time, especially in terms of size. No fish like to live in a crowded environment, and there’s a high chance that you won’t want to keep a goldfish in a bowl and get it over with.
In fact, many owners would like to add extras like a bit of decor, some artificial or natural plants, and even breed fish. Even the least picky species are known to prefer bigger spaces. They give them the room they need, so they will feel more comfortable in the long run.
For example, if you plan to get a goldfish either for yourself or for someone, I would suggest opting for a 20-gallon tank at the minimum. It’s true that many aquariums can cost a pretty penny, especially if they come with various accessories such as filters. However, owning a pet, whether it is a fish or not, requires a bit of commitment when it comes to maintaining it healthy and happy.
Before buying your first tank, you need to address the issue of the type of fish you are going to own. It goes without saying that saltwater and freshwater species cannot live in the same aquarium. Many species have different needs in terms of the type of food they consume, so you will also have to do a bit of research in this sense, as well.
Starter fish can be anything from bettas to goldfish. The coolest thing about bettas is that they don’t even need a heater or a filter and they can even be kept in smaller tanks. Of course, you always have the freedom to keep them in a bowl, even though I wouldn’t recommend doing so. It is said that the vibrations caused by the movement of your pet fish hit the walls of the bowl and reverberate.
If you do decide to use the same tank for two species, I have to note that not all get along well. Overpopulation is a common issue with most aquariums that exist in homes all over the world, but this circumstance might not be the greatest problem you will have to tackle. For example, bettas are fighters, so keeping them with a small population of goldfish might be a bad idea for the latter. Tetras are more peaceful and make a great beginner fish, for example, because they won’t attack other species. However, they might become the victims of others.