Harlequin rasbora tank mates

Good matches

63 of 98

The safest picks for harlequin rasboras are bettas, guppies and angelfish. Each match shares harlequin rasboras' temperature and pH and leaves them alone.

Easy, calm schooler for almost any peaceful tank.

Temperature

72–80°F

pH

6–7.5

Temperament

Peaceful

Minimum tank

10 gal

With care

21

Avoid

14

Good tank mates

• Betta76–80°F
• Guppy72–80°F
• Angelfish76–80°F
• Neon tetra72–79°F
• Corydoras72–79°F
• Honey gourami72–80°F
• Sparkling gourami72–80°F
• Otocinclus72–79°F
• Bolivian ram72–79°F
• Kuhli loach75–80°F
• Dwarf gourami72–80°F
• Mystery snail72–80°F
• Blue gourami72–80°F
• Tiger barb72–80°F
• Paradise fish72–79°F
• Panda cory72–77°F
• Rainbow shark72–80°F
• Upside down catfish72–79°F
• Cherry barb73–80°F
• Bristlenose pleco73–80°F
• Red tail shark72–79°F
• Lemon tetra72–80°F
• Black skirt tetra72–80°F
• Bamboo shrimp72–80°F
• Zebra loach73–79°F
• Yoyo loach75–80°F
• Zebra danio72–77°F
• Hatchetfish75–80°F
• GloFish tetra72–80°F
• Kribensis75–80°F
• Congo tetra73–80°F
• Serpae tetra72–79°F
• Clown pleco73–80°F
• Killifish72–77°F
• Odessa barb72–79°F
• Black neon tetra73–80°F
• Hillstream loach72–75°F
• Crayfish72–77°F
• Ramshorn snail72–80°F
• Apistogramma75–80°F
• Pearl gourami77–80°F
• Endler's livebearer72–80°F
• Pygmy cory72–79°F
• Glowlight tetra74–80°F
• Nerite snail72–78°F
• Pencilfish75–80°F
• Celestial pearl danio72–79°F
• Firemouth cichlid75–80°F
• Platy72–80°F
• Ember tetra73–80°F
• Rummy nose tetra75–80°F
• Dojo loach72–77°F
• Electric blue acara72–80°F
• Siamese algae eater75–79°F
• Rosy barb72–77°F
• Glass catfish75–80°F
• Cardinal tetra76–80°F
• Assassin snail75–80°F
• Chili rasbora75–80°F
• Dwarf neon rainbowfish75–80°F
• Gold barb72–75°F
• Swordtail72–79°F
• Boesemani rainbowfish75–80°F

Possible, with care

• Pea puffer Pea puffers are aggressive, though harlequin rasboras are big enough to shrug most of it off.
• Cherry shrimp Harlequin rasboras will eat baby shrimp and may chase adults. Dense plants or moss give cherry shrimp somewhere to hide.
• Amano shrimp Harlequin rasboras will eat baby shrimp and may chase adults. Dense plants or moss give amano shrimp somewhere to hide.
• Ghost shrimp Harlequin rasboras will eat baby shrimp and may chase adults. Dense plants or moss give ghost shrimp somewhere to hide.
• African dwarf frog African dwarf frogs eat slowly and nearly blind. Fast harlequin rasboras will take the food first, so target-feed them.
• Elephant nose fish A grown elephant nose fish may treat small harlequin rasboras as food, especially at night.
• Common pleco Plecos grow to 15 inches and need 125 gallons, far more than a tank set up for harlequin rasboras.
• Chinese algae eater Chinese algae eaters grow to 10 inches and need 75 gallons, far more than a tank set up for harlequin rasboras.
• Kissing gourami At 10 inches a kissing gourami can swallow a small harlequin rasbora. Fast, alert fish usually stay out of reach.
• Koi At 24 inches a koi can swallow a small harlequin rasbora. Fast, alert fish usually stay out of reach.
• Bala shark At 13 inches a bala shark can swallow a small harlequin rasbora. Fast, alert fish usually stay out of reach.
• Clown loach A grown clown loach may treat small harlequin rasboras as food, especially at night.
• Molly Water chemistry is a squeeze. The only pH that suits both is around 7.5.
• Tinfoil barb At 12 inches a tinfoil barb can swallow a small harlequin rasbora. Fast, alert fish usually stay out of reach.
• Zebra pleco They only share 79–80°F. Keep the heater set there and steady.
• Severum A grown severum may treat small harlequin rasboras as food, especially at night.
• German blue ram They only share 80°F. Keep the heater set there and steady.
• Blood parrot A grown blood parrot may treat small harlequin rasboras as food, especially at night.
• Silver dollar Silver dollars grow to 6 inches and need 75 gallons, far more than a tank set up for harlequin rasboras.
• Electric yellow cichlid Different water: harlequin rasboras want pH 6–7.5, yellow labs want pH 7.8–8.6.
• Peacock cichlid Different water: peacock cichlids want pH 7.8–8.6, harlequin rasboras want pH 6–7.5.

Avoid

• Axolotl Axolotls are coldwater animals (60–66°F); harlequin rasboras need 72–80°F. No temperature suits both.
• Pictus catfish An adult pictus catfish eats fish that fit in its mouth, and at 2 inches harlequin rasboras do.
• Goldfish Goldfish are coldwater animals (60–74°F); harlequin rasboras need 72–80°F. They overlap only at 72–74°F, the edge of both ranges.
• Oscar An adult oscar eats fish that fit in its mouth, and at 2 inches harlequin rasboras do.
• Bichir An adult bichir eats fish that fit in its mouth, and at 2 inches harlequin rasboras do.
• Black ghost knife An adult black ghost knife eats fish that fit in its mouth, and at 2 inches harlequin rasboras do.
• Convict cichlid Convict cichlids are aggressive and will bully peaceful harlequin rasboras.
• Jack Dempsey An adult jack dempsey eats fish that fit in its mouth, and at 2 inches harlequin rasboras do.
• Silver arowana An adult silver arowana eats fish that fit in its mouth, and at 2 inches harlequin rasboras do.
• African cichlid African cichlids are aggressive and will bully peaceful harlequin rasboras.
• White cloud minnow White cloud minnows are coldwater animals (60–72°F); harlequin rasboras need 72–80°F. They meet only at 72°F, the edge of both ranges.
• Fancy goldfish Fancy goldfish are coldwater animals (65–74°F); harlequin rasboras need 72–80°F. They overlap only at 72–74°F, the edge of both ranges.
• Discus No shared temperature. Discus need 82–88°F, harlequin rasboras need 72–80°F.
• Flowerhorn An adult flowerhorn eats fish that fit in its mouth, and at 2 inches harlequin rasboras do.

Planning a mixed tank? The tank mate checker tests every pair at once. Or read the harlequin rasbora care sheet.