When it comes to small aquarium fishes, there are numerous options that not only add beauty to your tank but also have varying care requirements. Here are some popular small fish species that are perfect for community tanks and beginners.

1. Betta Fish (Betta splendens)

Betta fish, also known as Siamese fighting fish, are vibrant and colorful. Males are particularly known for their long, flowing fins and can come in a variety of colors.

• Size: Typically around 2.5 to 3 inches.
• Tank Requirements: A minimum of 5 gallons with a gentle filter.
• Temperament: Males are territorial and should not be kept together.

2. Neon Tetra (Paracheirodon innesi)

Neon tetras are small, peaceful fish that are ideal for community tanks. They are known for their striking blue and red coloration.

• Size: About 1.5 inches.
• Tank Requirements: A minimum of 10 gallons with plenty of plants to provide cover.
• Temperament: Peaceful and can be kept in groups of 6 or more.

3. Guppy (Poecilia reticulata)

Guppies are hardy and colorful fish that are great for beginners. They come in a variety of colors and patterns, making them a popular choice.

• Size: Generally around 1.5 to 2 inches.
• Tank Requirements: A minimum of 10 gallons with a well-planted aquarium.
• Temperament: Peaceful and thrive in groups.

4. Corydoras Catfish (Corydoras spp.)

Corydoras catfish are small bottom dwellers that help keep the tank clean by scavenging for leftover food. They are social fish and should be kept in groups.

• Size: Typically 2 to 4 inches, depending on the species.
• Tank Requirements: A minimum of 10 gallons with a soft substrate.
• Temperament: Peaceful, best kept in groups of 5 or more.

5. Endler's Livebearer (Poecilia wingei)

Endler's livebearers are similar to guppies but tend to be smaller and more colorful. They are easy to care for and adapt well to various water conditions.

• Size: About 1 to 1.5 inches.
• Tank Requirements: A minimum of 5 gallons with plants and hiding spots.
• Temperament: Peaceful and can be kept in groups.

6. Zebra Danio (Danio rerio)

Zebra danios are hardy fish known for their distinctive horizontal stripes. They are very active and can add a lot of movement to your aquarium.

• Size: About 2 inches.
• Tank Requirements: A minimum of 10 gallons with room to swim.
• Temperament: Peaceful and do well in groups.

7. Cherry Shrimp (Neocaridina davidi)

While not a fish, cherry shrimp are a popular addition to small aquariums. They come in vibrant red colors and help keep the tank clean by eating algae.

• Size: About 1 to 1.5 inches.
• Tank Requirements: A minimum of 5 gallons with plenty of plants and hiding spots.
• Temperament: Peaceful and can be kept with small fish.

Conclusion

Choosing the right small fish for your aquarium depends on your tank size, water conditions, and the community you want to create. Always research the specific care requirements for each species and ensure compatibility with other tank mates. With the right choices, you can create a vibrant and harmonious aquatic environment.

For further reading, consider checking resources such as:

• Aquarium Co-Op
• The Spruce Pets