Aquarium Community College

Tetra fish are among the most popular freshwater aquarium fish thanks to their vibrant colors, peaceful nature, and mesmerizing schooling behavior. This in-depth guide explores tetra evolution, natural habitats, behavior, and expert tips for successful tetra care in aquariums.

Looking for the perfect tetra for your aquarium in 2026? While there are dozens of species in the hobby, a few stand out for their color, personality, and reliability in community tanks. Here are six tetras we think deserve a spot in your aquarium right now.