Can seven neon tetras and three guppies live in a 20 gallon tank?

Yes, seven neon tetras and three guppies can comfortably live in a 20-gallon tank. Neon tetras are small, peaceful schooling fish that typically reach a maximum size of about 1.5 inches. Guppies are also small, peaceful fish that typically reach a maximum size of about 2 inches. Both of these species are hardy and adaptable, and they can tolerate a wide range of water conditions.

When setting up a 20-gallon tank for neon tetras and guppies, it is important to provide plenty of hiding places and plants. This will help the fish feel secure and reduce stress. Neon tetras and guppies also appreciate a moderate amount of water flow, so it is important to have a filter that provides good circulation.

In terms of water parameters, neon tetras and guppies prefer soft, acidic water with a pH between 6.0 and 7.0. The temperature should be kept between 72 and 78 degrees Fahrenheit.

With proper care, neon tetras and guppies can live for several years. They are both beautiful and interesting fish that can make great additions to a home aquarium.