Black Molly tank mates
Poecilia sphenops var.
Black Molly gets along with 49 species, needs care with 136, and should avoid 3.
Fish4" adultPeaceful30+ gallons72–82°FpH 7–8.5
49Compatible
136With care
3Avoid
Best tank mates (hand-picked)
The most reliable companions for Black Molly — peaceful, and matched on water temperature and pH.
Colombian RamshornPeaceful snail, shares 72–82°F & pH 7–8.5Horned Nerite SnailPeaceful snail, shares 72–82°F & pH 7–8.5MollyPeaceful fish, shares 72–82°F & pH 7–8.5Olive Nerite SnailPeaceful snail, shares 72–82°F & pH 7–8.5Red Racer Nerite SnailPeaceful snail, shares 72–82°F & pH 7–8.5PlatyPeaceful fish, shares 72–82°F & pH 7–8.2Sailfin MollyPeaceful fish, shares 72–82°F & pH 7.5–8.5Fancy Guppy (Female trio)Peaceful fish, shares 72–82°F & pH 7–7.8Bamboo / Wood ShrimpPeaceful shrimp, shares 75–82°F & pH 7–7.5
Stocking more than one fish?
Don’t check pairs one at a time. Add Black Molly and every other fish you’re considering to the compatibility checker, and see how the whole community gets along at once — with tank-size and water-parameter conflicts flagged automatically.
Check my whole list →Best avoided (3 total)
A few to steer clear of — and exactly why:
Giant GouramiGiant Gourami’s mouth is big enough to swallow Black Molly (only 4" long) — it will be eaten.Cardinal ShrimpBlack Molly is 5.0× the length of Cardinal Shrimp — easily mouth-sized, and anything that fits in the mouth is a predator.OscarOscar’s mouth is big enough to swallow Black Molly (only 4" long) — it will be eaten.
Design the whole tank, not just the stocking
Skapelab plans a complete, buildable planted aquarium around your fish — a hand-illustrated layout, the exact plants and hardscape, a placement map, and a full equipment and shopping list. Free.
Design a tank with Black Molly →The full compatibility list
Every species we checked against Black Molly — tap to expand.
Compatible (49)
Albino CoryFish · 2.5"Assassin SnailSnail · 1"Bamboo / Wood ShrimpShrimp · 3.5"Bandit CoryFish · 2"Batik Nerite SnailSnail · 0.6"Blackstripe CoryFish · 2.2"Bladder SnailSnail · 0.5"Blue Mystery SnailSnail · 1.8"Bolivian RamFish · 3.5"Bristlenose PlecoFish · 5"Bronze CoryFish · 2.75"Cherry BarbFish · 2"Colombian RamshornSnail · 2"Croaking GouramiFish · 3"Dwarf GouramiFish · 3.5"Elegant CoryFish · 2"Emerald Cory (Brochis)Fish · 3"Fancy Guppy (Female trio)Fish · 2.4"Giant Sulawesi SnailSnail · 3"Gold Mystery SnailSnail · 1.8"GuppyFish · 2"Honey GouramiFish · 2"Horned Nerite SnailSnail · 0.5"Ivory Mystery SnailSnail · 1.8"Japanese Trapdoor SnailSnail · 2"Malaysian Trumpet SnailSnail · 1"MollyFish · 4"Mystery SnailSnail · 2"Nerite SnailSnail · 1"Olive Nerite SnailSnail · 0.75"Pagoda / Spiky SnailSnail · 1.5"Pearl GouramiFish · 4.5"PlatyFish · 2.5"Pond SnailSnail · 2"Rabbit SnailSnail · 3"Ramshorn SnailSnail · 1"Red Racer Nerite SnailSnail · 0.75"Saddled CoryFish · 1.8"Sailfin MollyFish · 5"Skunk CoryFish · 2"Spike-Topped Apple SnailSnail · 1.5"Spiky NeriteSnail · 0.7"Sulawesi SnailSnail · 2"Threestripe CoryFish · 2.2"Tracked Nerite SnailSnail · 0.8"Vampire ShrimpShrimp · 6"Variatus PlatyFish · 2.75"Yucatan MollyFish · 6"Zebra Nerite SnailSnail · 1"
Keep only with care (136)
AngelfishFish · 6"Betta (Siamese Fighting Fish)Fish · 2.5"Black Neon TetraFish · 1.5"Blue GouramiFish · 5"Brazos Dwarf CrayfishCrayfish · 1.5"Brilliant RasboraFish · 4"Cajun Dwarf CrayfishCrayfish · 1.5"Candy Striped PlecoFish · 4"Clown PlecoFish · 3.5"Dwarf Cory (Habrosus)Fish · 1"Dwarf Crayfish (CPO)Crayfish · 1.75"Dwarf Emerald RasboraFish · 1"Endler's LivebearerFish · 1.2"False Julii CoryFish · 2"Flower ShrimpShrimp · 2.5"Gold GouramiFish · 6"Harlequin RasboraFish · 1.75"Julii CoryFish · 2"Koi AngelfishFish · 6"KribensisFish · 3.5"Opaline GouramiFish · 6"Panda CoryFish · 2"Pitbull PlecoFish · 2.5"Pom Pom CrabCrab · 1"Pygmy CoryFish · 1"Rubber Pleco (Rubbernose)Fish · 4.5"Schwartz's CoryFish · 2.5"Scissortail RasboraFish · 3.5"Siamese Algae EaterFish · 6"Smudge Spot CoryFish · 2.25"Sparkling GouramiFish · 1.5"Spotted Tail CoryFish · 2.2"Sterbai CoryFish · 2.6"SwordtailFish · 5.5"Thai Micro CrabCrab · 0.4"Thai Micro Pom Pom CrabCrab · 0.8"Two-Saddled CoryFish · 2.5"Venezuelan CoryFish · 2.5"Wild-Type BettaFish · 2.5"Adolfo's CoryFish · 2.25"Altum AngelfishFish · 7"Amano ShrimpShrimp · 2"Axelrod's RasboraFish · 0.6"Black King Kong ShrimpShrimp · 1"Black Kuhli LoachFish · 3"Black Rose ShrimpShrimp · 1.5"Black Sail CoryFish · 2"Black Skirt TetraFish · 2.5"Blue Bolt ShrimpShrimp · 1"Blue Dream ShrimpShrimp · 1"Blue Lobster CrayfishCrayfish · 5"Blue Phantom PlecoFish · 7"Blue Tiger ShrimpShrimp · 1.2"Blue Velvet ShrimpShrimp · 1"Carbon Rili ShrimpShrimp · 1.5"Cardinal TetraFish · 2"Carnival / Polka Dot Freshwater CrabCrab · 1.5"Cherry ShrimpShrimp · 1"Chili RasboraFish · 0.7"Chocolate GouramiFish · 2"Chocolate ShrimpShrimp · 1"Clown RasboraFish · 4"Colombian Zebra PlecoFish · 3.5"Common PlecoFish · 24"Crystal Red ShrimpShrimp · 1"DiscusFish · 8"Dwarf Emerald Rasbora (nanus)Fish · 0.7"Electric Blue CrayfishCrayfish · 5"Ember TetraFish · 0.8"Emerald Dwarf RasboraFish · 0.9"Emerald Eye RasboraFish · 1.4"False Rummy Nose TetraFish · 2"Fiddler CrabCrab · 2"Fire RasboraFish · 1.6"Flash Pleco (L204)Fish · 20"German Blue RamFish · 2.5"Ghost ShrimpShrimp · 1.5"Gold Kuhli LoachFish · 3.5"Green Jade ShrimpShrimp · 1"Green Neon TetraFish · 1"Green Tiger BarbFish · 2.75"Hengel's RasboraFish · 1.2"King Tiger PlecoFish · 6"Kissing GouramiFish · 12"Kuhli LoachFish · 4"Lambchop RasboraFish · 1.25"Least RasboraFish · 0.8"Leopard Frog PlecoFish · 4.5"Licorice GouramiFish · 1.4"Longfin Bristlenose PlecoFish · 5"Marbled CrayfishCrayfish · 5"Mischling / Taiwan BeeShrimp · 1"Moonlight GouramiFish · 6"Neon Blue RasboraFish · 0.8"Neon Green RasboraFish · 0.8"Neon TetraFish · 1.5"Noble GouramiFish · 3"Oolong ShrimpShrimp · 1.2"Orange Eye Blue Tiger ShrimpShrimp · 1.2"Orange Rili ShrimpShrimp · 1"Otocinclus CatfishFish · 1.5"Painted Fire Red ShrimpShrimp · 1.5"Panther CrabCrab · 3"Phoenix RasboraFish · 0.8"Pinto ShrimpShrimp · 1"Purple Vampire CrabCrab · 1.5"Pygmy RasboraFish · 0.8"Red Claw CrabCrab · 2.5"Red Devil Vampire CrabCrab · 1.5"Red Nose ShrimpShrimp · 1.5"Red Rili ShrimpShrimp · 1"Red Shadow Panda ShrimpShrimp · 1.2"Red-Line RasboraFish · 1.75"Royal PlecoFish · 17"Rummynose TetraFish · 2"Shadow Panda ShrimpShrimp · 1.2"Siamese Algae EaterFish · 6"Slender RasboraFish · 1.5"Snowball ShrimpShrimp · 1"Strawberry RasboraFish · 0.7"Super Crystal Red ShrimpShrimp · 1.2"Tail Spot Pygmy CoryFish · 1"Tangerine Tiger ShrimpShrimp · 1"Thai Devil CrabCrab · 2"Thai Freshwater CrabCrab · 2.5"Thick-lipped GouramiFish · 3.5"Tiger BarbFish · 2.75"Tiger ShrimpShrimp · 1"Typhoon PlecoFish · 12"White Glove ShrimpShrimp · 1.2"Wine Red ShrimpShrimp · 1.2"Yellow King Kong ShrimpShrimp · 1"Yellow Neocaridina ShrimpShrimp · 1"Zebra DanioFish · 2"Zebra OtocinclusFish · 1.5"Zebra PlecoFish · 3.5"