Harlequin Rasbora tank mates

Trigonostigma heteromorpha · Fish · 1.75" · Peaceful · needs 15+ gal, 72–80°F, pH 6–7.5 buy at Flip Aquatics · Flip Aquatics live-arrival guarantee

Compatible (60)

Thai Micro Crab (crab, 0.4")
Banded Kuhli Loach (fish, 4")
Black Kuhli Loach (fish, 3")
Black Neon Tetra (fish, 1.5")
Bronze Cory (fish, 2.75")
Candy Striped Pleco (fish, 4")
Cardinal Tetra (fish, 2")
Cherry Barb (fish, 2")
Chili Rasbora (fish, 0.7")
Chocolate Gourami (fish, 2")
Clown Pleco (fish, 3.5")
Croaking Gourami (fish, 3")
Dwarf Cory (Habrosus) (fish, 1")
Dwarf Gourami (fish, 3.5")
Ember Tetra (fish, 0.8")
Emerald Cory (Brochis) (fish, 3")
False Rummy Nose Tetra (fish, 2")
False Rummynose Tetra (fish, 2")
Fancy Guppy (Female trio) (fish, 2.4")
German Blue Ram (fish, 2.5")
Gold Kuhli Loach (fish, 3.5")
Green Neon Tetra (fish, 1")
Guppy (fish, 2")
Honey Gourami (fish, 2")
Kuhli Loach (fish, 4")
Lambchop Rasbora (fish, 1.25")
Least Rasbora (fish, 0.8")
Neon Tetra (fish, 1.5")
Panda Cory (fish, 2")
Phoenix Rasbora (fish, 0.8")
Pitbull Pleco (fish, 2.5")
Pygmy Cory (fish, 1")
Pygmy Rasbora (fish, 0.8")
Red-Line Rasbora (fish, 1.75")
Rummynose Tetra (fish, 2")
Sparkling Gourami (fish, 1.5")
Zebra Danio (fish, 2")
Assassin Snail (snail, 1")
Batik Nerite Snail (snail, 0.6")
Bladder Snail (snail, 0.5")
Blue Mystery Snail (snail, 1.8")
Colombian Ramshorn (snail, 2")
Gold Mystery Snail (snail, 1.8")
Horned Nerite Snail (snail, 0.5")
Ivory Mystery Snail (snail, 1.8")
Japanese Assassin Snail variant (snail, 1")
Japanese Trapdoor Snail (snail, 2")
Malaysian Trumpet Snail (snail, 1")
Mystery Snail (snail, 2")
Nerite Snail (snail, 1")
Olive Nerite Snail (snail, 0.75")
Pagoda / Spiky Snail (snail, 1.5")
Pond Snail (snail, 2")
Ramshorn Snail (snail, 1")
Red Racer Nerite (snail, 0.8")
Red Racer Nerite Snail (snail, 0.75")
Spike-Topped Apple Snail (snail, 1.5")
Spiky Nerite (snail, 0.7")
Tracked Nerite Snail (snail, 0.8")
Zebra Nerite Snail (snail, 1")

Usually fine — light caution (38)

Pom Pom Crab (crab, 1")
Brazos Dwarf Crayfish (crayfish, 1.5")
Cajun Dwarf Crayfish (crayfish, 1.5")
Dwarf Crayfish (CPO) (crayfish, 1.75")
Angelfish (fish, 6")
Bolivian Ram (fish, 3.5")
Brilliant Rasbora (fish, 4")
Clown Rasbora (fish, 4")
Koi Angelfish (fish, 6")
Pearl Gourami (fish, 4.5")
Amano Shrimp (shrimp, 2")
Bamboo / Wood Shrimp (shrimp, 3.5")
Black King Kong Shrimp (shrimp, 1")
Black Rose Shrimp (shrimp, 1.5")
Blue Bolt Shrimp (shrimp, 1")
Blue Dream Shrimp (shrimp, 1")
Blue Tiger Shrimp (shrimp, 1.2")
Blue Velvet Shrimp (shrimp, 1")
Carbon Rili Shrimp (shrimp, 1.5")
Cherry Shrimp (shrimp, 1")
Crystal Red Shrimp (shrimp, 1")
Flower Shrimp (shrimp, 2.5")
Ghost Shrimp (shrimp, 1.5")
Green Jade Shrimp (shrimp, 1")
Mischling / Taiwan Bee (shrimp, 1")
Orange Eye Blue Tiger Shrimp (shrimp, 1.2")
Orange Rili Shrimp (shrimp, 1")
Painted Fire Red Shrimp (shrimp, 1.5")
Pinto Shrimp (shrimp, 1")
Red Nose Shrimp (shrimp, 1.5")
Red Rili Shrimp (shrimp, 1")
Snowball Shrimp (shrimp, 1")
Tangerine Tiger Shrimp (shrimp, 1")
Tiger Shrimp (shrimp, 1")
Vampire Shrimp (shrimp, 6")
White Glove Shrimp (shrimp, 1.2")
Yellow King Kong Shrimp (shrimp, 1")
Yellow Neocaridina Shrimp (shrimp, 1")

Caution — only with care (53)

Panther Crab (crab, 3")
Blue Lobster Crayfish (crayfish, 5")
Electric Blue Crayfish (crayfish, 5")
Marbled Crayfish (crayfish, 5")
Altum Angelfish (fish, 7")
Betta (Siamese Fighting Fish) (fish, 2.5")
Black Molly (fish, 4")
Black Skirt Tetra (fish, 2.5")
Blue Gourami (fish, 6")
Blue Phantom Pleco (fish, 7")
Bristlenose Pleco (fish, 5")
Colombian Zebra Pleco (fish, 3.5")
Common Pleco (fish, 24")
Discus (fish, 8")
Endler's Livebearer (fish, 1.2")
Flash Pleco (L204) (fish, 20")
Gold Gourami (fish, 6")
King Tiger Pleco (fish, 6")
Kribensis (fish, 3.5")
Leopard Frog Pleco (fish, 4.5")
Longfin Bristlenose Pleco (fish, 5")
Molly (fish, 4")
Moonlight Gourami (fish, 6")
Noble Gourami (fish, 3")
Opaline Gourami (fish, 6")
Platy (fish, 2.5")
Royal Pleco (fish, 17")
Rubber Pleco (Rubbernose) (fish, 4.5")
Sailfin Molly (fish, 5")
Siamese Algae Eater (fish, 6")
Siamese Algae Eater (fish, 6")
Swordtail (fish, 5.5")
Tail Spot Pygmy Cory (fish, 1")
Thick-lipped Gourami (fish, 3.5")
Three Spot / Blue Gourami (fish, 5")
Tiger Barb (fish, 2.75")
Typhoon Pleco (fish, 12")
Variatus Platy (fish, 2.75")
Wild-Type Betta (fish, 2.5")
Yucatan Molly (fish, 6")
Zebra Pleco (fish, 3.5")
Zebra Pleco (fish, 3.5")
Cardinal Shrimp (shrimp, 0.8")
Cardinal Sulawesi Shrimp (shrimp, 0.8")
Chocolate Shrimp (shrimp, 1")
Oolong Shrimp (shrimp, 1.2")
Red Shadow Panda Shrimp (shrimp, 1.2")
Shadow Panda Shrimp (shrimp, 1.2")
Super Crystal Red Shrimp (shrimp, 1.2")
Wine Red Shrimp (shrimp, 1.2")
Giant Sulawesi Snail (snail, 3")
Rabbit Snail (snail, 3")
Sulawesi Snail (snail, 2")

Avoid (3)

These will likely eat, be eaten by, or seriously stress Harlequin Rasbora.

Giant Gourami (fish, 24")
Oscar (fish, 16")
Wild Betta Splendens (fish, 2.5")

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