1. Guppy: These popular aquarium fish are known for their bright colors and lively personalities. They are relatively easy to care for and can thrive in a variety of environments.
2. Neon Tetra: These tiny, shimmering fish are another popular choice for aquariums. They are peaceful and school in large groups, creating a visually stunning effect.
3. Killifish: A diverse group of fish, killifish can be found in a variety of sizes and colors. Some species are very small, making them suitable for nano aquariums. They are known for their interesting breeding habits.