25 Flame Tetra Tank Mates

Choosing the perfect tank mates for Flame Tetras involves finding the right balance. The key lies in selecting species that are peaceful, suitable to the same water conditions, and of similar size as your Flame Tetras. With this list of compatible fish species, you’re one step closer to creating a harmonious aquatic home.

by Fabian

Updated: August 8, 2023 / 16 mins read

Fabian is the dedicated Chief Editor at Aquarium Nexus. From a young age, he was captivated by the vibrant world of aquatic life, leading him to accumulate over 20 years of experience in keeping and breeding various fish species. The fulfillment derived from the aquarium hobby has remained a constant throughout Fabian's life. As an expert in the field, he finds great pleasure in imparting his extensive knowledge and personal experiences to both seasoned aficionados and budding enthusiasts.

Cherry Barb

The Cherry Barb is a vibrant choice as a tank mate for your Flame Tetra. This species exhibits a tranquil nature and vibrant color, enhancing the visual appeal and harmony within the tank.

• Compatibility: 4 out of 5
• Tank Size: Minimum of 20 gals (75 liters)
• Temperature Range: 72°F to 79°F (22°C to 26°C)
• Care Level: Medium
• Temperament: Peaceful
• Diet & Feeding: Omnivore; prefers live foods but also accepts flake and pellet food.
• Adult Size: Approximately 2 inches (5 cm)

This fish prefers a densely planted tank for hiding spots. Although a peaceful species, it is better to keep them in groups of at least 5 to avoid shy behavior. Such consideration will ensure a lively and colorful aquatic community inside your tetra tank.

Otocinclus Catfish

The Otocinclus Catfish, affectionately known as the “Oto,” is an adorable, peaceful fish that thrives in community tanks. This fish species is perfect for your Flame Tetra, forming “clean-up crews” to help maintain your tank! Generally, they prefer a well-planted environment with plenty of room for exploration.

• Compatibility: 4/5
• Tank Size: 10 gal (37.9 liters)
• Temperature Range: 72-82°F (22-28°C)
• Care Level: Medium
• Temperament: Peaceful
• Diet & Feeding: Omnivore (Algae, sinking food pellets, and occasional vegetables)
• Adult Size: 2 in (5 cm)

Remember, Otos do well with partners, much like Flame Tetras. So, ensure there is ample space and food for your vibrant community underwater.

Honey Gourami

Honey Gouramis are sparkling fish species adored for their peaceful temperament. This makes them perfect companions to your Flame Tetras.

• Compatibility: 5 out of 5
• Tank Size: 20 gallons (75 liters)
• Temperature Range: 72-82 °F (22-28 °C)
• Care Level: Easy to Moderate
• Temperament: Peaceful
• Diet & Feeding: Omnivores, appreciates a varied diet of both plant-based and meaty foods
• Adult Size: Approx 2 inches (5 cm)

Their easy-going nature and manageable size allow Honey Gouramis to coexist harmoniously with Flame Tetras and other similar-sized tank mates. In addition, their flexible dietary preferences make feeding a breeze. Remember, a well-fed fish is a happy fish!

Harlequin Rasbora

The Harlequin Rasbora offers an appealing addition to any aquarium with its metallic hues and distinctive black triangular patch. This Southeast Asian fish is known for its tranquil temperament and simple care level, making it an ideal tank mate for your Flame Tetras.

• Compatibility: 4/5 – Flame Tetras and Harlequin Rasboras coexist peacefully.
• Tank Size: Minimum 10 gal (38 liters)
• Temperature Range: 72-81°F (22-27°C)
• Care Level: Easy – They adapt well to a variety of tank conditions.
• Temperament: Peaceful – They’re great for community tanks.
• Diet & Feeding: Omnivorous – They appreciate a varied diet of meaty foods and plant matter.
• Adult Size: 1.5-2 inches (4-5 cm)

Remember, maintaining a suitable environment for all tank inhabitants is crucial, even for resilient species like the Harlequin Rasbora.

Glowlight Tetra

The Glowlight Tetra (Hemigrammus erythrozonus) is a vibrant addition to any aquarium. With their radiant neon-orange stripe running along their bodies, they emulate the aurora of a sunrise.

• Compatibility: 4/5 – Glowlight Tetras are peaceful fish that blend well in a community aquarium. They’re known to get along well with other peaceful species of similar size.
• Tank Size: 20 gallons (75 liters) – Glowlights are schooling fish and should ideally be kept in groups of at least 6.
• Temperature Range: 72-82°F (22-28°C) – They prefer a moderately warm tank.
• Care Level: Easy – Suited for beginners.
• Temperament: Peaceful – A great community fish.
• Diet & Feeding: Omnivore – They enjoy a variety of meals including flake foods, micro-pellets, and live foods.
• Adult Size: 2 inches (5 cm) – A small fish which doesn’t require lots of space.

Neon Tetra

Vibrantly colorful, Neon Tetras are a popular buddy for Flame Tetras.

• Compatibility: 4.5 out of 5
• Tank Size: 10 gal (37.9 L) (minimum)
• Temperature Range: 70-81°F (21-27°C)
• Care Level: Easy
• Temperament: Peaceful
• Diet & Feeding: Omnivorous; feed on small invertebrates or crustaceans, insects, and plant matter
• Adult Size: 1.5 inches (3.8 cm)

Neon Tetras are peaceful and tend to school, which makes them a suitable mate for Flame Tetras. They have similar tank needs and eating habits. Just like your Flame Tetras, these fish are easy to care for, making them a stress-free addition to your aquarium. Their glowing neon blue and red stripes make for a delightful contrast against the fiery hues of Flame Tetras.

Corydoras Catfish

When it comes to aquarium staples, Corydoras Catfish stand out as a classic pick. With their adorable looks and active demeanor, they’re a delight to watch. They’re a bottom-dweller species that won’t compete with Flame Tetras.

• Compatibility: 5/5 – Extremely compatible with Flame Tetras.
• Tank Size: 20 gal (75 liters) – They need plenty of room to move around on the tank’s bottom.
• Temperature Range: 72–78°F (22–26°C) – Similar to Flame Tetras.
• Care Level: Easy – Perfect for beginners.
• Temperament: Peaceful – They’ll coexist nicely without causing trouble.
• Diet & Feeding: Omnivore – Provides dietary variation for the tank.
• Adult Size: 2.5 in (6.35 cm) – A tad larger than Flame Tetras, which creates a balanced visual display.

Black Phantom Tetra

Black Phantom Tetras are cosmopolitan neighbors ideal for a Flame Tetra habitat. These lively fish bond, forming peaceful groups, hence ideal for a community aquarium.

• Compatibility: 5 out of 5. Flame Tetras love the peaceful nature of the Black Phantom Tetras.
• Tank Size: Minimum 20 gal (76 liters). They prefer ample swimming space.
• Temperature Range: 72-82°F (22-28°C). A tropical climate suits them best.
• Care Level: Easy. A fantastic pick for novices.
• Temperament: Peaceful. Aggression isn’t a trait for these fishes.
• Diet & Feeding: Omnivore. They appreciate a balanced diet of worms, insects, and vegetable matter.
• Adult Size: Up to 1.5 inches (3.81 cm). A convenient size for most community tanks.

Pearl Gourami

The Pear Gourami is a magnificent tropical fish that exudes grace and serenity. This labyrinth fish thrives in slightly acidic, soft waters and makes a great Flame Tetra tank companion.

• Compatibility: 4/5. Pearl Gouramis are typically non-aggressive, which makes cohabitation with Flame Tetras ideal.
• Tank Size: 30 gallons (113.5 litres). These fish require spacious tanks with abundant vegetation.
• Temperature Range: 77-82°F (25-28°C). They prefer warm environments akin to their tropical habitat.
• Care Level: Moderate. While not overly demanding, they require clean, well-maintained waters to stay healthy.
• Temperament: Peaceful. Pearl Gouramis are ideal for tranquil, community aquariums.
• Diet & Feeding: Omnivorous. They appreciate a varied diet of plant matter and small invertebrates.
• Adult Size: 4.3 inches (11 cm). These slender beauties make a significant impact without overpowering your tank.

Bristlenose Pleco

These intriguing creatures truly make for charming and peaceful tank mates for your flame tetras.

• Compatibility: 4/5
• Tank Size: 20 gal (75 liters)
• Temperature Range: 60–80°F (15–27°C)
• Care Level: Easy to moderate
• Temperament: Peaceful
• Diet & Feeding: Mostly herbivorous; diet should contain a variety of vegetables and specially formulated sinking pellets.
• Adult Size: 5 in (13 cm)

Bristlenose Plecos are known for their rather unique look featuring a wide lip area filled with bristles. Although generally nocturnal, they are fairly active and you’ll often catch them snacking on algae, helping keep your tank clean. However, don’t mistake their herbivorous diet for total vegetarianism—they’ll appreciate the occasional meaty treat!

Kuhli Loach

The Kuhli Loach is an ideal tank mate for your Flame Tetras. Their peaceful nature, nocturnal habits, and the fact they inhabit different tank levels make them an excellent choice. Residing at the bottom of the tank, Kuhli Loaches will not be a threat to your Flame Tetras.

• Compatibility: 5 out of 5
• Tank Size: Minimum 20 gallons (75 liters)
• Temperature Range: 75-86°F (24-30°C)
• Care Level: Moderate. They require well-maintained water conditions and plenty of hiding spots.
• Temperament: Peaceful. They generally keep to themselves and rarely interact with other fish.
• Diet & Feeding: Omnivorous, enjoy variety, including commercial fish pellets, live worms, and plant matter.
• Adult Size: 4-5 inches (10-12 cm) long. They are a larger bottom-dwelling species compared to Flame Tetras, which inhabit mid to upper levels.

Rummy-Nose Tetra

The Rummy-Nose Tetra is a small yet dynamic addition, adding action to the lower levels of your tank. They’re usually found in schools, making them compatible with Flame Tetras.

• Compatibility: 4 out of 5
• Tank Size: Minimum 20 gal (76 liters)
• Temperature Range: 75-80°F (24-27°C)
• Care Level: Easy
• Temperament: Peaceful
• Diet & Feeding: Omnivorous – feed them a variety of flake, frozen, or live foods
• Adult Size: Up to 2 inches (5 centimeters)

Just like Flame Tetras, Rummy-nose Tetras illuminate your tank with their vibrant red noses which stands out against the backdrop of aquatic green, providing an eye-catching splash of color. Remember, keeping them in a school of at least six will make them feel at home.

Endler’s Livebearer

Endler’s Livebearer is a vibrant, adventuresome companion to have in your tank.

• Compatibility: 5/5. This little fella gets along superbly with your Flame Tetras.
• Tank Size: Min 20 gal (75 liters). These lively beings need space to roam.
• Temperature Range: 75-81°F (24-27°C). They thrive in moderately warm environments.
• Care Level: Easy. Endler’s are known to be hardy, making them ideal for beginners.
• Temperament: Peaceful. Their gentleness makes them suitable companions for Flame Tetras.
• Diet & Feeding: Omnivore. They aren’t picky eaters, anything from flakes to small insects will do.
• Adult Size: 1 – 1.8 in (2.5 – 4.5 cm). They are small in size, but vibrant in personality.

Make sure you take time to marvel at their shimmering, colorful bodies. Their beauty certainly adds a whole new dimension to your aquarium.

Ram Cichlids

The Ram Cichlid is an affectionate species highly favored as a tank mate for Flame Tetras. These charming creatures exhibit colors of rich blue, orange, and yellow.

• Compatibility: 4 out of 5 – They get along well with Flame Tetras but monitor their interactions as these species can sometimes be territorial.
• Tank Size: 28 gal (110 liter) – Spacious environments are favored by Ram Cichlids.
• Temperature Range: 72-82°F (22-28°C) – Maintaining this warm temperature keeps them healthy.
• Care Level: Intermediate – While not overly demanding, these creatures favor meticulous care.
• Temperament: Peaceful – Ram Cichlids are usually quite friendly.
• Diet & Feeding: Omnivorous – A combination of plant matter and protein sources will suffice.
• Adult Size: 3 inches (8 cm) – Despite their small size, Ram Cichlids certainly add color and dynamism to tanks.

Ember Tetra

Ember Tetra, or Hyphessobrycon amandae, is a fiery addition to your flame tetra tank. Its bright orange colour adds a visually captivating element. This species is peaceful, making it a perfect choice. They’re known for their low maintenance and adaptable nature.

• Compatibility: 4 out of 5
• Tank Size: Minimum 10 gallons (38 liters)
• Temperature Range: 73-84°F (23-29°C)
• Care Level: Easy
• Temperament: Peaceful
• Diet & Feeding: Omnivore; Feed small flakes, micro pellet food, and occasional live food
• Adult Size: Up to 0.8 inches (2 cm)

Remember, Ember Tetras prefer swimming in groups, so keep a school of at least 6. Compatibility reference indicates flame tetra compatibility.

Threadfin Rainbowfish

Threadfin Rainbowfish are mesmerizing creatures, a dashing choice for your Flame Tetra tank. These beauties display gentle behavior and require a moderate level of care. They thrive in a temperature range of 72-77°F (22-25°C).

• Compatibility: 4 out of 5
• Tank Size: 20 gal (75 liters)
• Temperature Range: 72-77°F (22-25°C)
• Care Level: Moderate
• Temperament: Peaceful
• Diet & Feeding: Omnivorous, enjoys a variety of food including brine shrimp and flake food.
• Adult Size: 3″ (7.5 cm)

Its unique colorful fins create a vivid scene in freshwater aquariums. The Threadfin Rainbowfish not only cohabits but also complements the Flame Tetra’s fiery hues. Next, let’s move to another captivating species, the Celestial Pearl Danio.

Celestial Pearl Danio

The Celestial Pearl Danio, an opalescent beauty, thrives in peaceful communities, making it a perfect Flame Tetra tank mate. Being diminutive, they demand ample hiding spots like plants or caves.

• Compatibility: 4/5
• Tank Size: Minimum 10 gal (38L)
• Temperature Range: 73-79°F (23-26°C)
• Care Level: Easy, great for experienced and novice owners alike.
• Temperament: Peaceful, but active. Swims in all tank levels.
• Diet & Feeding: Omnivore. Enjoy live, frozen, or quality flake food.
• Adult Size: 1 inch (2.54 cm).

These fish add a dash of color and charm to your tank, making it an even more attractive home for your Flame Tetras. Try introducing them into your aquarium family – you won’t be disappointed!

Glass Catfish

The Glass Catfish, fascinating and transparent, could be your Flame Tetra’s next tank mate. They’re amazingly peaceful species, suitable for most community aquariums. Equally astonishing is their uniqueness, exemplified by their near-transparent bodies.

• Compatibility: 4/5
• Tank Size: 30 gal (113.5 liters)
• Temperature Range: 75-80°F (23.9-26.7°C)
• Care Level: Moderate
• Temperament: Peaceful
• Diet & Feeding: Omnivore; enjoys a mixed diet of algae wafers, sinking pellets, and frozen foods,
• Adult Size: Up to 4 inches (10.16 cm)

They enjoy a well-decorated tank with plenty of hiding spots. Though slightly timid, Glass Catfish will help create a tranquil and harmonious ambiance, adding an element of mystery and intrigue to your aquatic community.

White Cloud Minnow

The White Cloud Minnow, contrary to the tropical nature of your Flame Tetras, is a cold water fish. However, these tranquil tank mates mutually coexist without any confrontations.

• Compatibility: 4 out of 5
• Tank Size: Minimum 10 gallons (38 liters)
• Temperature Range: 64-72°F (18-22°C)
• Care Level: Easy
• Temperament: Peaceful
• Diet & Feeding: Omnivore; can survive on high-quality flake food or freeze-dried bloodworms, and appreciate live or frozen food for variety.
• Adult Size: Up to 1.5 inches (4 cm)

Their resilience and vivacious activities in cooler temperatures ascertain their selection as a staple within aquarium communities. Being easy to care for makes them ideal for beginners experimenting on their Flame Tetra tank compatibility.

Black Neon Tetra

The Black Neon Tetra is a peaceful schooling fish that complements the Flame Tetra quite nicely. Displaying luminescent neon lines and an elegant black color, this species will certainly enhance the visual appeal of your tank.

• Compatibility: 4/5
• Tank Size: 10 gal (38 liters)
• Temperature Range: 72-82°F (22-28°C)
• Care Level: Easy
• Temperament: Peaceful
• Diet & Feeding: Omnivore; feeds on a variety of foods like brine shrimp, daphnia, micro-worms, and high-quality flakes
• Adult Size: 1.5 inches (3.8 cm)

These petite species are easy to care for and are adaptable to a range of tank environments. However, make sure the tank conditions are stable as drastic changes could stress these tetras.

Zebra Danio

Zebra Danios, or Danio Rerio, are another brilliant choice of tank mates for your Flame Tetras.

• Compatibility: 5/5. They easily get along with Flame Tetras due to their peaceful nature.
• Tank Size: 10 gallons (Approximately 38 liters). A spacious tank enables them to swim freely.
• Temperature Range: 64°F to 75°F (around 18°C to 24°C). Similar to Flame Tetras, they thrive in lower temperatures.
• Care Level: Easy. They’re robust, making them perfect for beginners.
• Temperament: Peaceful. This perfectly blends with the calm Flame Tetras.
• Diet & Feeding: Omnivorous. A balanced diet of plants and small animals is beneficial.
• Adult Size: 2.5 inches (nearly 6.35 cm). Their small size ensures the tank doesn’t get crowded.

Dwarf Gourami

Dwarf Gouramis are colorful, peaceful fish that can be a great addition to your Flame Tetra aquarium. Their bright coloration and sociable behavior make them a fan favorite. They do well in a community tank and with their easy care, they are a fantastic choice for beginner and experienced aquarists alike.

• Compatibility: 4 out of 5
• Tank Size: 20 gal (75 liters)
• Temperature Range: 72-82°F (22-27°C)
• Care Level: Easy
• Temperament: Peaceful
• Diet & Feeding: Omnivore; they should be fed a variety of live, frozen and flake foods.
• Adult Size: 3.5 inches (8.8 cm)

Dwarf Gouramis are a great fit for a Flame Tetra tank due to their comparable size, similar habitat requirements, and their peaceful demeanor.

Pristella Tetra

The Pristella Tetra is a graceful addition to any aquarium.

• Compatibility: 4/5. Their peaceful temperament makes them a delightful tank mate for your Flame Tetras.
• Tank Size: 20 gal (75.7 liters). This allows them enough space to swim comfortably in a group.
• Temperature Range: 73-79°F (23-26°C). It’s quite similar to the Flame Tetra’s needs.
• Care Level: Easy. They’re hardy and can tolerate various water conditions.
• Temperament: Peaceful. They get along well with other species without any aggression.
• Diet & Feeding: Omnivorous. They enjoy small invertebrates, plant matter and readily accept flake foods.
• Adult Size: 1.8 in. (4.5cm). They’re not too bulky, which contributes to a peaceful coexistence with other fish.

The Pristella Tetra is a wonderful candidate for a Flame Tetra tank mate. Coupling eye-catching aesthetics with ease of care, they add a beautiful touch to your aquarium.

Golden Barbs

Golden Barbs are radiant additions to any freshwater environment. Their golden bodies shining under aquarium lights captivate with an exuberance that perfectly complements the fiery hue of Flame Tetras.

• Compatibility: 4/5. Their peaceful demeanor and high adaptability make them excellent tank mates.
• Tank Size: 20 gallons (75.7 liters). They appreciate a bit more room for active swimming.
• Temperature Range: 64-75°F (17-24°C). They’re robust and can adapt to various conditions.
• Care Level: Easy. They’re quite hardy and excellent for novice aquarists.
• Temperament: Peaceful. They prefer to live in a school.
• Diet & Feeding: Omnivorous. They enjoy small insects, algae, and plant matter.
• Adult Size: Up to 3 inches (7.6 cm). Their bright color is a standout, even at a petite size.

These charming swimmers are fantastic for harmonious tank atmospheres with Flame Tetras.

Cardinal Tetra

The Cardinal Tetra is a famously vibrant fish, with their striking blue and red colors, and are a brilliant match for your Flame Tetra aquarium. They’re peaceful by nature, making them great tank buddies.

• Compatibility: 5/5
• Tank Size: Minimum of 15 gallons (57 liters)
• Temperature Range: 73-81°F (23-27°C)
• Care Level: Moderate
• Temperament: Peaceful
• Diet & Feeding: Omnivorous; they require a balanced diet of flake, pellet foods as well as small live or frozen meals.
• Adult Size: Around 2 inches (5 cm)

As long as these conditions are met, your Flame Tetras and Cardinal Tetras should live happily side by side.

Conclusion

Choosing the right tank mates for your Flame Tetras can significantly enhance their well-being and your aquarium enjoyment. With the 25 species listed above, you’re armed with solid choices that cohabitate comfortably with your vibrant fish. Feel free to share other species that have worked well as tank mates in your aquarium adventures in the comments section below.