Tropopaussia
Tropopaussia is a genus of small, tropical, freshwater fish belonging to the family Poeciliidae. The genus is native to Central and South America, with species found in rivers, streams, and ponds. Tropopaussia species are known for their small size, typically ranging from 2 to 4 centimeters in length, and their vibrant colors, which can include shades of blue, green, and yellow. They are omnivorous, feeding on algae, insects, and small crustaceans. Tropopaussia fish are popular among aquarium enthusiasts due to their hardiness and relatively low maintenance requirements. However, they are not suitable for aquariums with other fish due to their aggressive nature. The genus includes several species, with Tropopaussia maculata being one of the most commonly kept in aquariums.