Starting an aquarium is a fun journey, and picking the right fish is key for those just getting started. Choosing species that are resilient, low-maintenance, and flexible in various settings can lead to a pleasant and hassle-free experience. Luckily, many types of fish fit these criteria, each adding its unique charm and beauty to your tank. If you want colorful fish, friendly companions, or species that keep your tank clean, here are the 15 best aquarium fish for beginners is a great place to start.

1. Betta Fish

Betta fish, commonly known as “Siamese fighting fish,” are popular with beginners because of their vibrant colors and resilience. These fish do well in smaller tanks and don’t need a complicated filtration system, making them perfect for those just starting. They thrive in warm water with gentle currents. However, male bettas can be territorial, so it’s a good idea to keep them alone or with calm, friendly tankmates. Additionally, their easy upkeep lets you concentrate on mastering the fundamentals of aquarium care while appreciating their bright colors and graceful fins.

2. Neon Tetras

Neon Tetras are a popular option for new aquarium owners because of their tiny size and vibrant look. Their bright blue and red stripes pop in any tank, especially when they are kept in groups of six or more. These fish are calm and get along well with other fish, which makes them a great choice for community tanks. Additionally, they require just a few basic things, like clean water and an easy tank setup with some plants or decorations for hiding. Their peaceful nature and ability to adjust make it delightful to see them swimming together in perfect harmony.

3. Guppies

Guppies are great for beginners because they adapt easily and come in a stunning array of colors and patterns. These livebearers can flourish in various water conditions and are very straightforward to care for. Additionally, guppies breed easily, making it a fun experience for beginners looking to grow their tank naturally. They do well with a straightforward diet of flakes and some occasional treats like brine shrimp. Moreover, their fun personality and energetic swimming styles make them a great addition to any aquarium, keeping your tank lively and full of charm.

4. Zebra Danios

Zebra Danios are tough, lively fish that are great for beginners in the aquarium hobby. Their bold horizontal stripes and lively movements bring vibrant energy to your tank. These fish can handle different water conditions well, so they’re great for beginners who might make a few mistakes now and then. Furthermore, Zebra Danios are social fish that thrive in groups, so it’s best to keep at least six of them together. This helps bring out their natural behavior and energy. Watching them zip around the tank is sure to keep things exciting.

5. Platies

Platies are small, vibrant fish that are easy to care for and social. They come in many colors, adding a cheerful touch to any aquarium. Platies are livebearers, meaning you might see them giving birth to fry, which is an exciting experience for beginners. They do well in community tanks and are simple to feed, enjoying flakes, vegetables, and frozen foods. Additionally, their calm nature helps them interact harmoniously with other species. Platies are a great option for beginners in the aquarium world because they are strong and easy to care for.

6. Mollies

Mollies are adaptable fish that thrive in both freshwater and slightly brackish water, making them a great choice for those just starting. You can choose from a variety of colors and patterns, including solid black and bright orange, to personalize the appearance of your tank. Mollies are calm fish that get along nicely with other gentle species. Additionally, they give birth to live young and usually breed without much effort, which can be a great advantage if you want to increase the number of fish in your tank. Their lively but relaxed demeanor is delightful to observe.

7. Corydoras Catfish

Corydoras Catfish, often called Cory Cats, are small bottom-dwellers that are not only cute but also helpful in your aquarium. These fish eat extra food and other junk to keep the tank clean. Cory cats are friendly and do best in groups of four or more, bringing a lively atmosphere to your aquarium. Additionally, they are simple to maintain, needing just a soft substrate to safeguard their delicate barbels and a couple of hiding places. Their fun behavior and distinct look make them a top choice for new aquarists wanting to maintain a clean, lively tank.

8. Cherry Barbs

Cherry Barbs are small, resilient fish that are ideal for newcomers looking to add a splash of color to their aquarium. Their bright red colors pop against any background, making them an attractive option. Cherry Barbs thrive in groups, so it’s best to keep them in schools of five or more. Furthermore, their calm nature helps them live harmoniously with many other species. They like a tank that has both plants and open areas, allowing them to hide and swim around comfortably. Their lively but peaceful demeanor is a delight to watch.

9. Swordtails

Swordtails get their name from their distinctive tail fins that look like a sword. These tough fish are perfect for newcomers, as they adjust well to various water conditions. These fish love to swim around and do their best in larger tanks that have both plants and open areas for swimming. Additionally, Swordtails are livebearers, which means you might spot some fry in your tank if the conditions are suitable. Their vibrant colors and graceful tails create a stunning look in any aquarium, and they are easy to care for, making them a great choice for beginners.

10. Harlequin Rasboras

Harlequin Rasboras are small, social fish that bring a beautiful sparkle to your aquarium. Their copper-orange bodies with black triangular markings are stunning and add a touch of elegance to any tank. These peaceful fish thrive in groups of six or more and love an environment with plenty of plants and open swimming space. Moreover, they are highly adaptable to various water conditions, making them an excellent choice for beginners. Additionally, their synchronized swimming in schools creates a mesmerizing display that brings life and activity to your tank.

11. White Cloud Mountain Minnows

White Cloud Mountain Minnows are hardy and adaptable, making them perfect for first-time fishkeepers. These small, shimmering fish thrive in cooler water, so they don’t require a heater, making them ideal for low-maintenance setups. Their iridescent bodies and graceful fins shimmer under aquarium lights, adding a magical glow to your tank. Furthermore, they are peaceful schooling fish that thrive in groups, making them a lively and harmonious addition to any community aquarium. Their resilience and simple care requirements make them a top pick for beginners.

12. Dwarf Gouramis

Dwarf Gouramis are a popular choice for beginner aquarists due to their vibrant colors and calm demeanor. Their iridescent blue, orange, and red shades bring a touch of elegance to any aquarium. These fish prefer warm water with plenty of plants for hiding spots, creating a tranquil and natural environment. Additionally, their unique bubble-nest-building behavior during breeding adds an interesting dynamic to your tank. Dwarf Gouramis are easy to care for and thrive in a stress-free setup, making them a rewarding species for beginners.

13. Kuhli Loaches

Kuhli Loaches are fascinating, eel-like fish that add an exotic charm to your tank. Their slender bodies with alternating black and yellow stripes make them a unique and eye-catching addition. These peaceful bottom-dwellers are shy by nature and enjoy hiding in soft substrates or caves during the day. Moreover, they are excellent scavengers, helping to clean up leftover food and keeping the tank tidy. Kuhli Loaches thrive in groups and coexist well with other non-aggressive fish, making them a great choice for beginners who want something out of the ordinary.

14. Black Skirt Tetras

Black Skirt Tetras are hardy fish that bring a dramatic flair to your aquarium. Their flowing black fins and silvery bodies create a striking contrast against brightly colored tankmates. These peaceful fish prefer to swim in five or more schools, showcasing their natural group behavior. Additionally, they are highly tolerant of varying water conditions, making them forgiving for beginner aquarists. With their low-maintenance requirements and unique appearance, Black Skirt Tetras are a versatile and stylish choice for any novice.

15. Endler’s Livebearers

Endler’s Livebearers are small, colorful fish that pack a lot of personality into their tiny frames. Closely related to guppies, they share the same adaptability and ease of care, making them perfect for beginners. Their vibrant colors and playful swimming behavior add liveliness to your aquarium. Endler’s Livebearers are also livebearers, meaning you might see fry in your tank under suitable conditions. They thrive in community tanks and are compatible with other peaceful species. With their stunning appearance and hardy nature, Endler’s Livebearers are an excellent final addition to this beginner-friendly list.