A pair of guppies can live in a bowl, but it is important to make sure that the bowl is large enough to provide them with adequate swimming space. The minimum recommended tank size for a pair of guppies is 10 gallons, but larger is always better. The bowl should also have a lid to prevent the guppies from jumping out.
In addition to providing adequate space, it is also important to make sure that the water in the bowl is clean and free of harmful chemicals. Guppies are sensitive to water quality, and poor water conditions can lead to health problems. It is important to change the water in the bowl regularly, and to use a water conditioner to remove harmful chemicals.
Guppies are also social fish, and they do best when they are kept in groups. A single guppy can become lonely and stressed, which can lead to health problems. If you are only going to keep a pair of guppies, it is important to make sure that they are both males. Two females will likely fight, and this can also lead to health problems.
With proper care, a pair of guppies can live happily and healthily in a bowl. However, it is important to make sure that the bowl is large enough, the water is clean, and the guppies are kept in a group.