Harlequin Rasbora tank mates

Best tank mates for Harlequin Rasbora

Black Phantom Tetra

4.5 cm · 22–28°C

Head-and-Tail-Light Tetra

4.5 cm · 22–28°C

Lemon Tetra

4.5 cm · 20–28°C

X-ray Tetra

4.5 cm · 22–28°C

Black Neon Tetra

4 cm · 20–28°C

Blackline Rasbora

5 cm · 22–26°C

Cherry Barb

5 cm · 23–27°C

Flame Tetra

4 cm · 18–28°C

Glowlight Tetra

4 cm · 24–28°C

Golden Tetra

5 cm · 23–28°C

Honey Gourami

5 cm · 22–28°C

Otocinclus

5 cm · 21–27°C

62 more species pass every check:

Possible with care

• Agassiz's Dwarf Cichlid— Temperature is a compromise for someone here
• Altum Angelfish— Everyone is close on temperature — one fish sits just outside its favourite
• Amano Shrimp— pH is a compromise for someone here
• Assassin Snail— Everyone is close on pH — one fish sits just outside its favourite
• Bamboo Shrimp— pH is a compromise for someone here
• Betta (Siamese Fighting Fish)— Everyone is close on temperature — one fish sits just outside its favourite
• Bladder Snail— Everyone is close on pH — one fish sits just outside its favourite
• Blood Parrot Cichlid— pH is a compromise for someone here
• Blue Acara— pH is a compromise for someone here
• Blue Dolphin Cichlid— pH is a compromise for someone here
• Blue Tiger Shrimp— Temperature is a compromise for someone here
• Blue Velvet Shrimp— pH is a compromise for someone here
• Boesemani Rainbowfish— Temperature is a compromise for someone here
• Borneo Sucker— Everyone is close on temperature — one fish sits just outside its favourite
• Brichard's Teleogramma— Some tankmates are at risk of being eaten
• Buenos Aires Tetra— Setup needs adjustments for some species
• Buffalohead Cichlid— Some tankmates are at risk of being eaten
• Bumblebee Goby— Everyone is close on pH — one fish sits just outside its favourite
• Butterfly Hillstream Loach— Everyone is close on temperature — one fish sits just outside its favourite
• Cardinal Tetra— Temperature is a compromise for someone here
• Celebes Rainbowfish— Temperature is a compromise for someone here
• Checkerboard Cichlid— Everyone is close on temperature — one fish sits just outside its favourite
• Checkered Barb— Temperature is a compromise for someone here
• Cherry Shrimp— pH is a compromise for someone here
• Chocolate Cichlid— Everyone is close on temperature — one fish sits just outside its favourite
• Chocolate Gourami— Everyone is close on temperature — one fish sits just outside its favourite
• Colombian Ramshorn Snail— Everyone is close on pH — one fish sits just outside its favourite
• Convict Cichlid— Everyone is close on pH — one fish sits just outside its favourite
• Crystal Red Shrimp— Temperature is a compromise for someone here
• Denison Barb— Temperature is a compromise for someone here
• Discus— Everyone is close on temperature — one fish sits just outside its favourite
• Doctor Fish— Temperature is a compromise for someone here
• Dojo (Weather) Loach— Everyone is close on temperature — one fish sits just outside its favourite
• Dwarf Chain Loach— Temperature is a compromise for someone here
• Dwarf Neon Rainbowfish— pH is a compromise for someone here
• Dwarf Orange Crayfish— Everyone is close on pH — one fish sits just outside its favourite
• Dwarf Pea Puffer— Everyone is close on pH — one fish sits just outside its favourite
• Elephantnose Fish— Some tankmates are at risk of being eaten
• Ellioti Cichlid— Everyone is close on pH — one fish sits just outside its favourite
• Endler's Livebearer— Everyone is close on pH — one fish sits just outside its favourite
• Festivum (Flag Cichlid)— Temperature is a compromise for someone here
• Figure-8 Puffer— Everyone is close on pH — one fish sits just outside its favourite
• Firemouth Cichlid— Everyone is close on pH — one fish sits just outside its favourite
• Forktail Rainbowfish— Everyone is close on pH — one fish sits just outside its favourite
• Freshwater Clam— Everyone is close on pH — one fish sits just outside its favourite
• German Blue Ram— Everyone is close on temperature — one fish sits just outside its favourite
• Ghost Shrimp— Everyone is close on pH — one fish sits just outside its favourite
• Glowlight Danio— Temperature is a compromise for someone here
• Gold Barb— Temperature is a compromise for someone here
• Green Discus— Everyone is close on temperature — one fish sits just outside its favourite
• Green Neon Tetra— Everyone is close on temperature — one fish sits just outside its favourite
• Guppy— Everyone is close on pH — one fish sits just outside its favourite
• Heckel Discus— Everyone is close on temperature — one fish sits just outside its favourite
• Japanese Trapdoor Snail— Temperature is a compromise for someone here
• Kissing Gourami— Some tankmates are at risk of being eaten
• Least Killifish— Temperature is a compromise for someone here
• Leopard Danio— Temperature is a compromise for someone here
• Malaysian Trumpet Snail— Everyone is close on pH — one fish sits just outside its favourite
• Medaka Ricefish— Everyone is close on temperature — one fish sits just outside its favourite
• Moonlight Gourami— Everyone is close on temperature — one fish sits just outside its favourite
• Mystery Snail— Everyone is close on pH — one fish sits just outside its favourite
• Nerite Snail— Everyone is close on pH — one fish sits just outside its favourite
• Odessa Barb— Temperature is a compromise for someone here
• Panda Corydoras— Temperature is a compromise for someone here
• Paradise Fish— Temperature is a compromise for someone here
• Paraguay Eartheater— Temperature is a compromise for someone here
• Pearl Danio— Temperature is a compromise for someone here
• Pearl Gourami— Temperature is a compromise for someone here
• Peppered Corydoras— Everyone is close on temperature — one fish sits just outside its favourite
• Pictus Catfish— Some tankmates are at risk of being eaten
• Platy— Everyone is close on pH — one fish sits just outside its favourite
• Polka Dot Loach— Some tankmates are at risk of being eaten
• Port Cichlid— Temperature is a compromise for someone here
• Rabbit Snail— Everyone is close on temperature — one fish sits just outside its favourite
• Rainbow Cichlid— Everyone is close on pH — one fish sits just outside its favourite
• Rainbow Shark— pH is a compromise for someone here
• Ramshorn Snail— Everyone is close on pH — one fish sits just outside its favourite
• Red Rainbowfish— Temperature is a compromise for someone here
• Redhead Cichlid— Temperature is a compromise for someone here
• Reticulated Hillstream Loach— Temperature is a compromise for someone here
• Rosy Barb— Everyone is close on temperature — one fish sits just outside its favourite
• Rubber Lip Pleco— Temperature is a compromise for someone here
• Severum— Everyone is close on temperature — one fish sits just outside its favourite
• Spotted Hoplo— Some tankmates are at risk of being eaten
• Sterbai Corydoras— Temperature is a compromise for someone here
• Sulawesi Cardinal Shrimp— Everyone is close on temperature — one fish sits just outside its favourite
• Sunshine Peacock— pH is a compromise for someone here
• Sveni Eartheater— Everyone is close on temperature — one fish sits just outside its favourite
• T-Bar Cichlid— Temperature is a compromise for someone here
• Threadfin Acara— Everyone is close on temperature — one fish sits just outside its favourite
• Threadfin Rainbowfish— Temperature is a compromise for someone here
• Three-spot Gourami— Temperature is a compromise for someone here
• Turquoise Rainbowfish— Everyone is close on pH — one fish sits just outside its favourite
• Uaru (Triangle Cichlid)— Everyone is close on temperature — one fish sits just outside its favourite
• Vampire Shrimp— pH is a compromise for someone here
• Venezuelan Cory— pH is a compromise for someone here
• White Cloud Mountain Minnow— Everyone is close on temperature — one fish sits just outside its favourite
• Wrestling Halfbeak— Everyone is close on pH — one fish sits just outside its favourite
• Yoyo Loach— Some tankmates are at risk of being eaten
• Zebra Danio— Temperature is a compromise for someone here
• Zebra Pleco— Everyone is close on temperature — one fish sits just outside its favourite

Avoid with Harlequin Rasbora

• Acei Cichlid— Only one pH value suits everyone — no margin
• Adonis Pleco— Tank is too small for some species
• African Butterflyfish— A predator will eat a tankmate
• Angelfish— A predator will eat a tankmate
• Auratus Cichlid— Only one pH value suits everyone — no margin
• Bala Shark— Tank is too small for some species
• Black Moor Goldfish— No temperature suits every species here
• Borleyi (Redfin Hap)— Only one pH value suits everyone — no margin
• Brevis Shell Dweller— Only one pH value suits everyone — no margin
• Brichardi (Fairy Cichlid)— No pH value suits every species here
• Bumblebee Cichlid— No pH value suits every species here
• Calvus Cichlid— No pH value suits every species here
• Clown Loach— Tank is too small for some species
• Cobalt Blue Zebra— No pH value suits every species here
• Comet Goldfish— No temperature suits every species here
• Common Goldfish— No temperature suits every species here
• Common Pleco— Tank is too small for some species
• Compressiceps Cichlid— No pH value suits every species here
• Cuckoo Catfish— Only one pH value suits everyone — no margin
• Cylindricus Cichlid— Only one pH value suits everyone — no margin
• Cyprichromis— No pH value suits every species here
• Demasoni Cichlid— Only one pH value suits everyone — no margin
• Demon Eartheater— Tank is too small for some species
• Dogtooth Cichlid— Only one pH value suits everyone — no margin
• Duboisi Tropheus— No pH value suits every species here
• Dwarf Petricola Catfish— Only one pH value suits everyone — no margin
• Electric Blue Ahli— No pH value suits every species here
• Electric Yellow Lab— No pH value suits every species here
• Elongate Mbuna— Only one pH value suits everyone — no margin
• Endlicheri Bichir— Tank is too small for some species
• Even-spotted Synodontis— Only one pH value suits everyone — no margin
• Fantail Goldfish— No temperature suits every species here
• Featherfin Squeaker— A predator will eat a tankmate
• Five-bar Cichlid— Only one pH value suits everyone — no margin
• Frontosa— No pH value suits every species here
• Goby Cichlid— No pH value suits every species here
• Golden Julie— Only one pH value suits everyone — no margin
• Green Spotted Pufferfish— Only one pH value suits everyone — no margin
• Green Terror— A predator will eat a tankmate
• Hongi Cichlid— Only one pH value suits everyone — no margin
• Iridescent Shark— Tank is too small for some species
• Jack Dempsey— A predator will eat a tankmate
• Jaguar Cichlid— Tank is too small for some species
• Jewel Cichlid— A predator will eat a tankmate
• Johanni Cichlid— No pH value suits every species here
• Kenyi Cichlid— No pH value suits every species here
• Koi— No temperature suits every species here
• Lemon Cichlid— Only one pH value suits everyone — no margin
• Livingstoni— No pH value suits every species here
• Maingano Cichlid— No pH value suits every species here
• Malawi Eyebiter— Only one pH value suits everyone — no margin
• Malawi Hawk— Only one pH value suits everyone — no margin
• Marlieri Cichlid— Only one pH value suits everyone — no margin
• Masked Julie— No pH value suits every species here
• Molly— Only one pH value suits everyone — no margin
• Multifasciatus Shell Dweller— Only one pH value suits everyone — no margin
• Ocellatus Shell Dweller— Only one pH value suits everyone — no margin
• Oranda Goldfish— No temperature suits every species here
• Ornate Bichir— Tank is too small for some species
• Oscar— Tank is too small for some species
• Peacock Bass— Tank is too small for some species
• Peacock Cichlid— Only one pH value suits everyone — no margin
• Pike Cichlid— Tank is too small for some species
• Powder Blue Cichlid— No pH value suits every species here
• Ranchu Goldfish— No temperature suits every species here
• Red Devil— A predator will eat a tankmate
• Red Empress— Only one pH value suits everyone — no margin
• Red Terror— Tank is too small for some species
• Red Zebra Cichlid— No pH value suits every species here
• Regan's Julie— Only one pH value suits everyone — no margin
• Reticulated Flying Fox— Tank is too small for some species
• Rostratus— Only one pH value suits everyone — no margin
• Rosy Red Minnow— No temperature suits every species here
• Royal Pleco— Tank is too small for some species
• Rusty Cichlid— Only one pH value suits everyone — no margin
• Ryukin Goldfish— No temperature suits every species here
• Sailfin Molly— No hardness (GH) value suits every species here
• Sailfin Pleco— Tank is too small for some species
• Salvini Cichlid— A predator will eat a tankmate
• Sand-sifting Xenotilapia— No pH value suits every species here
• Saulosi Cichlid— Only one pH value suits everyone — no margin
• Shubunkin Goldfish— No temperature suits every species here
• Silver Arowana— Tank is too small for some species
• Silver Moony— Only one carbonate hardness (KH) value suits everyone — no margin
• Similis Shell Dweller— Only one pH value suits everyone — no margin
• Star Sapphire— No pH value suits every species here
• Striped Raphael Catfish— A predator will eat a tankmate
• Swordtail— Only one hardness (GH) value suits everyone — no margin
• Taiwan Reef Cichlid— No pH value suits every species here
• Telescope Goldfish— No temperature suits every species here
• Texas Cichlid— A predator will eat a tankmate
• Threadfin Petrochromis— No pH value suits every species here
• Tropheus— No pH value suits every species here
• Venustus (Giraffe Cichlid)— Only one pH value suits everyone — no margin
• Wolf Cichlid— Tank is too small for some species
• Zebra Mbuna— Only one pH value suits everyone — no margin

Frequently asked questions

What are the best tank mates for Harlequin Rasbora?

Top engine-approved picks: Black Phantom Tetra, Head-and-Tail-Light Tetra, Lemon Tetra, X-ray Tetra, Black Neon Tetra. Each shares a workable temperature and pH band with Harlequin Rasbora and clears the temperament and predation checks in a spacious reference tank.

What fish should you avoid keeping with Harlequin Rasbora?

The engine red-flags Acei Cichlid, Adonis Pleco, African Butterflyfish among others — for incompatible water, temperament conflict or predation risk. The avoid list above states the specific reason for each pairing.