Guppy tank mates
Every recommendation below is computed, not copied: the AquaSage engine paired Guppy (6 cm / 2.4 in, peaceful) with 271 fish and invertebrates in a spacious reference tank and scored each pair for water-parameter overlap, temperament, predation and husbandry. A species makes the green list only when every check passes at 22–28 °C (71.6–82.4 °F).
Verdicts by the AquaSage engine v0.1.2 in a 450 L reference tank. Read the full methodology →
Best tank mates for Guppy
Platy
6 cm · 18–26°C
Forktail Rainbowfish
5.5 cm · 23–28°C
Mystery Snail
5.5 cm · 18–28°C
Amano Shrimp
5 cm · 18–28°C
Dwarf Orange Crayfish
5 cm · 16–28°C
Ghost Shrimp
5 cm · 18–28°C
Wrestling Halfbeak
7 cm · 23–29°C
Endler's Livebearer
4.5 cm · 22–29°C
X-ray Tetra
4.5 cm · 22–28°C
Bumblebee Goby
4 cm · 22–29°C
Celebes Rainbowfish
8 cm · 22–28°C
Dwarf Neon Rainbowfish
8 cm · 22–28°C
19 more species pass every check:
Possible with care
- Acei Cichlid— Everyone is close on pH — one fish sits just outside its favourite
- African Butterfly Cichlid— Everyone is close on pH — one fish sits just outside its favourite
- African Butterflyfish— Everyone is close on pH — one fish sits just outside its favourite
- Agassiz's Cory— pH is a compromise for someone here
- Agassiz's Dwarf Cichlid— pH is a compromise for someone here
- Auratus Cichlid— Everyone is close on pH — one fish sits just outside its favourite
- Bamboo Shrimp— pH is a compromise for someone here
- Banjo Catfish— Everyone is close on pH — one fish sits just outside its favourite
- Betta (Siamese Fighting Fish)— Everyone is close on temperature — one fish sits just outside its favourite
- Black Neon Tetra— Everyone is close on pH — one fish sits just outside its favourite
- Black Phantom Tetra— Everyone is close on pH — one fish sits just outside its favourite
- Black Ruby Barb— Everyone is close on pH — one fish sits just outside its favourite
- Black Skirt Tetra— Serious temperament conflict
- Blackline Rasbora— Everyone is close on pH — one fish sits just outside its favourite
- Bleeding Heart Tetra— Everyone is close on pH — one fish sits just outside its favourite
- Bloodfin Tetra— Some tension — cover and space are doing the work
- Blue Acara— Some tankmates are at risk of being eaten
- Blue Dolphin Cichlid— Everyone is close on pH — one fish sits just outside its favourite
- Blue Tiger Shrimp— Everyone is close on temperature — one fish sits just outside its favourite
- Bolivian Ram— pH is a compromise for someone here
- Borleyi (Redfin Hap)— Everyone is close on pH — one fish sits just outside its favourite
- Borneo Sucker— Everyone is close on temperature — one fish sits just outside its favourite
- Brevis Shell Dweller— Everyone is close on pH — one fish sits just outside its favourite
- Brichard's Teleogramma— Everyone is close on pH — one fish sits just outside its favourite
- Brichardi (Fairy Cichlid)— Everyone is close on pH — one fish sits just outside its favourite
- Bristlenose Pleco— pH is a compromise for someone here
- Bronze Corydoras— Everyone is close on pH — one fish sits just outside its favourite
- Buenos Aires Tetra— Serious temperament conflict
- Buffalohead Cichlid— Setup needs adjustments for some species
- Bumblebee Cichlid— Serious temperament conflict
- Butterfly Hillstream Loach— Everyone is close on temperature — one fish sits just outside its favourite
- Calvus Cichlid— Everyone is close on pH — one fish sits just outside its favourite
- Celestial Pearl Danio— Everyone is close on temperature — one fish sits just outside its favourite
- Checkered Barb— Everyone is close on temperature — one fish sits just outside its favourite
- Cherry Barb— Everyone is close on pH — one fish sits just outside its favourite
- Chinese Algae Eater— Serious temperament conflict
- Chocolate Cichlid— Everyone is close on temperature — one fish sits just outside its favourite
- Clown Pleco— Everyone is close on pH — one fish sits just outside its favourite
- Cobalt Blue Zebra— Everyone is close on pH — one fish sits just outside its favourite
- Cockatoo Dwarf Cichlid— Everyone is close on pH — one fish sits just outside its favourite
- Colombian Ramshorn Snail— Setup needs adjustments for some species
- Compressiceps Cichlid— Everyone is close on pH — one fish sits just outside its favourite
- Congo Dwarf Cichlid— Everyone is close on pH — one fish sits just outside its favourite
- Congo Tetra— Everyone is close on pH — one fish sits just outside its favourite
- Convict Cichlid— Serious temperament conflict
- Cuckoo Catfish— Everyone is close on pH — one fish sits just outside its favourite
- Cylindricus Cichlid— Everyone is close on pH — one fish sits just outside its favourite
- Cyprichromis— Everyone is close on pH — one fish sits just outside its favourite
- Demasoni Cichlid— Serious temperament conflict
- Denison Barb— Everyone is close on temperature — one fish sits just outside its favourite
- Discus— Everyone is close on temperature — one fish sits just outside its favourite
- Doctor Fish— Everyone is close on temperature — one fish sits just outside its favourite
- Dogtooth Cichlid— Serious temperament conflict
- Dojo (Weather) Loach— Everyone is close on temperature — one fish sits just outside its favourite
- Duboisi Tropheus— pH is a compromise for someone here
- Dwarf Chain Loach— Everyone is close on pH — one fish sits just outside its favourite
- Dwarf Flag Cichlid— Everyone is close on pH — one fish sits just outside its favourite
- Dwarf Gourami— Everyone is close on pH — one fish sits just outside its favourite
- Dwarf Pea Puffer— Serious temperament conflict
- Dwarf Petricola Catfish— Everyone is close on pH — one fish sits just outside its favourite
- Electric Yellow Lab— Everyone is close on pH — one fish sits just outside its favourite
- Elephantnose Fish— Everyone is close on pH — one fish sits just outside its favourite
- Ellioti Cichlid— Some tankmates are at risk of being eaten
- Elongate Mbuna— Serious temperament conflict
- Emperor Tetra— Everyone is close on pH — one fish sits just outside its favourite
- Even-spotted Synodontis— Everyone is close on pH — one fish sits just outside its favourite
- Featherfin Squeaker— Everyone is close on pH — one fish sits just outside its favourite
- Festivum (Flag Cichlid)— Everyone is close on pH — one fish sits just outside its favourite
- Figure-8 Puffer— Serious temperament conflict
- Firemouth Cichlid— Some tankmates are at risk of being eaten
- Five-bar Cichlid— Everyone is close on pH — one fish sits just outside its favourite
- Flame Tetra— Everyone is close on pH — one fish sits just outside its favourite
- Glass Catfish— Everyone is close on pH — one fish sits just outside its favourite
- Glowlight Danio— Everyone is close on temperature — one fish sits just outside its favourite
- Glowlight Tetra— Everyone is close on pH — one fish sits just outside its favourite
- Goby Cichlid— Everyone is close on pH — one fish sits just outside its favourite
- Gold Barb— Everyone is close on temperature — one fish sits just outside its favourite
- Golden Dwarf Cichlid— Everyone is close on pH — one fish sits just outside its favourite
- Golden Julie— Everyone is close on pH — one fish sits just outside its favourite
- Golden Pencilfish— Everyone is close on pH — one fish sits just outside its favourite
- Golden Tetra— Everyone is close on pH — one fish sits just outside its favourite
- Golden Wonder Killifish— Everyone is close on pH — one fish sits just outside its favourite
- Green Discus— Everyone is close on temperature — one fish sits just outside its favourite
- Harlequin Rasbora— Everyone is close on pH — one fish sits just outside its favourite
- Head-and-Tail-Light Tetra— Everyone is close on pH — one fish sits just outside its favourite
- Honey Gourami— Everyone is close on pH — one fish sits just outside its favourite
- Hongi Cichlid— Everyone is close on pH — one fish sits just outside its favourite
- Japanese Trapdoor Snail— Everyone is close on temperature — one fish sits just outside its favourite
- Jewel Cichlid— Some tension — cover and space are doing the work
- Johanni Cichlid— Serious temperament conflict
- Julii Cory— Everyone is close on pH — one fish sits just outside its favourite
- Kenyi Cichlid— Everyone is close on pH — one fish sits just outside its favourite
- Keyhole Cichlid— Everyone is close on pH — one fish sits just outside its favourite
- Kissing Gourami— Some tankmates are at risk of being eaten
- Kribensis— Everyone is close on pH — one fish sits just outside its favourite
- Lambchop Rasbora— Everyone is close on pH — one fish sits just outside its favourite
- Least Killifish— Everyone is close on temperature — one fish sits just outside its favourite
- Lemon Cichlid— Everyone is close on pH — one fish sits just outside its favourite
- Lemon Tetra— Everyone is close on pH — one fish sits just outside its favourite
- Leopard Danio— Everyone is close on temperature — one fish sits just outside its favourite
- Little Corydoras— Everyone is close on pH — one fish sits just outside its favourite
- Macmasteri Dwarf Cichlid— Everyone is close on pH — one fish sits just outside its favourite
- Maingano Cichlid— Everyone is close on pH — one fish sits just outside its favourite
- Marlieri Cichlid— Everyone is close on pH — one fish sits just outside its favourite
- Masked Julie— 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
- Molly— pH is a compromise for someone here
- Moonlight Gourami— Everyone is close on temperature — one fish sits just outside its favourite
- Multifasciatus Shell Dweller— Everyone is close on pH — one fish sits just outside its favourite
- Neon Tetra— Everyone is close on temperature — one fish sits just outside its favourite
- Ocellatus Shell Dweller— Everyone is close on pH — one fish sits just outside its favourite
- Odessa Barb— Everyone is close on temperature — one fish sits just outside its favourite
- Otocinclus— Everyone is close on pH — one fish sits just outside its favourite
- Panda Corydoras— Everyone is close on temperature — one fish sits just outside its favourite
- Paradise Fish— Serious temperament conflict
- Paraguay Eartheater— Everyone is close on temperature — one fish sits just outside its favourite
- Peaceful Betta— Everyone is close on pH — one fish sits just outside its favourite
- Peacock Cichlid— Everyone is close on pH — one fish sits just outside its favourite
- Pearl Danio— Everyone is close on temperature — one fish sits just outside its favourite
- Pearl Gourami— Everyone is close on pH — one fish sits just outside its favourite
- Penguin Tetra— Some tension — cover and space are doing the work
- Peppered Corydoras— Everyone is close on temperature — one fish sits just outside its favourite
- Pictus Catfish— Everyone is close on pH — one fish sits just outside its favourite
- Polka Dot Loach— Serious temperament conflict
- Port Cichlid— Everyone is close on temperature — one fish sits just outside its favourite
- Powder Blue Cichlid— Everyone is close on pH — one fish sits just outside its favourite
- Purple Emperor Tetra— Everyone is close on pH — one fish sits just outside its favourite
- Pygmy Corydoras— Everyone is close on pH — one fish sits just outside its favourite
- Rabbit Snail— Everyone is close on temperature — one fish sits just outside its favourite
- Rainbow Cichlid— Setup needs adjustments for some species
- Rainbow Shark— Serious temperament conflict
- Red Empress— Everyone is close on pH — one fish sits just outside its favourite
- Red Rainbowfish— Some tankmates are at risk of being eaten
- Red Whiptail Catfish— Everyone is close on pH — one fish sits just outside its favourite
- Red Zebra Cichlid— Everyone is close on pH — one fish sits just outside its favourite
- Red-Tail Shark— Serious temperament conflict
- Redhead Cichlid— Some tankmates are at risk of being eaten
- Regan's Julie— Everyone is close on pH — one fish sits just outside its favourite
- Reticulated Hillstream Loach— Everyone is close on temperature — one fish sits just outside its favourite
- Rosy Barb— Everyone is close on temperature — one fish sits just outside its favourite
- Rosy Tetra— Everyone is close on pH — one fish sits just outside its favourite
- Rubber Lip Pleco— Everyone is close on temperature — one fish sits just outside its favourite
- Rummynose Tetra— Everyone is close on pH — one fish sits just outside its favourite
- Rusty Cichlid— Everyone is close on pH — one fish sits just outside its favourite
- Salt and Pepper Cory— Everyone is close on pH — one fish sits just outside its favourite
- Sand-sifting Xenotilapia— Everyone is close on pH — one fish sits just outside its favourite
- Saulosi Cichlid— Serious temperament conflict
- Scissortail Rasbora— Hardness (GH) is a compromise for someone here
- Serpae Tetra— Serious temperament conflict
- Severum— Everyone is close on temperature — one fish sits just outside its favourite
- Silver Moony— Serious temperament conflict
- Silver Tip Tetra— Some tension — cover and space are doing the work
- Similis Shell Dweller— Everyone is close on pH — one fish sits just outside its favourite
- Skunk Cory— Everyone is close on pH — one fish sits just outside its favourite
- Sparkling Gourami— Everyone is close on pH — one fish sits just outside its favourite
- Spotted Hoplo— Some tankmates are at risk of being eaten
- Star Sapphire— Everyone is close on pH — one fish sits just outside its favourite
- Sterbai Corydoras— Everyone is close on pH — one fish sits just outside its favourite
- Striped Kribensis— Everyone is close on pH — one fish sits just outside its favourite
- 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
- Taiwan Reef Cichlid— Everyone is close on pH — one fish sits just outside its favourite
- Thai Micro Crab— Everyone is close on pH — one fish sits just outside its favourite
- Thick-lipped Gourami— Everyone is close on pH — one fish sits just outside its favourite
- Threadfin Acara— Everyone is close on temperature — one fish sits just outside its favourite
- Threadfin Petrochromis— pH is a compromise for someone here
- Threadfin Rainbowfish— Everyone is close on pH — one fish sits just outside its favourite
- Three-spot Gourami— Some tankmates are at risk of being eaten
- Tiger Barb— Serious temperament conflict
- Tropheus— pH is a compromise for someone here
- Umbrella Dwarf Cichlid— Everyone is close on pH — one fish sits just outside its favourite
- Vampire Shrimp— pH is a compromise for someone here
- White Cloud Mountain Minnow— Everyone is close on temperature — one fish sits just outside its favourite
- Yoyo Loach— Serious temperament conflict
- Zebra Danio— Everyone is close on temperature — one fish sits just outside its favourite
- Zebra Mbuna— Serious temperament conflict
- Zebra Pleco— Everyone is close on temperature — one fish sits just outside its favourite
Avoid with Guppy
- Adonis Pleco— Tank is too small for some species
- Altum Angelfish— No pH value suits every species here
- Angelfish— A predator will eat a tankmate
- Bala Shark— Tank is too small for some species
- Black Moor Goldfish— No temperature suits every species here
- Cardinal Tetra— No pH value suits every species here
- Checkerboard Cichlid— Only one pH value suits everyone — no margin
- Chili Rasbora— Only one pH value suits everyone — no margin
- Chocolate Gourami— No pH value suits every species here
- Clown Killifish— Only one pH value suits everyone — no margin
- Clown Loach— Tank is too small for some species
- Cochu's Blue Tetra— Only one carbonate hardness (KH) value suits everyone — no margin
- 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
- Crystal Red Shrimp— No pH value suits every species here
- Demon Eartheater— Tank is too small for some species
- Diamond Tetra— Only one pH value suits everyone — no margin
- Dwarf Rasbora— Only one pH value suits everyone — no margin
- Electric Blue Ahli— A predator will eat a tankmate
- Ember Tetra— Only one pH value suits everyone — no margin
- Endlicheri Bichir— Tank is too small for some species
- Fantail Goldfish— No temperature suits every species here
- Frontosa— Tank is too small for some species
- German Blue Ram— Only one pH value suits everyone — no margin
- Green Neon Tetra— Only one hardness (GH) value suits everyone — no margin
- Green Spotted Pufferfish— Serious temperament conflict
- Green Terror— A predator will eat a tankmate
- Heckel Discus— 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
- Koi— No temperature suits every species here
- Kuhli Loach— Only one pH value suits everyone — no margin
- Livingstoni— A predator will eat a tankmate
- Malawi Eyebiter— A predator will eat a tankmate
- Malawi Hawk— Tank is too small for some species
- Marble Hatchetfish— 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
- Pike Cichlid— Tank is too small for some species
- Ranchu Goldfish— No temperature suits every species here
- Red Devil— A predator will eat a tankmate
- Red Terror— Tank is too small for some species
- Reticulated Flying Fox— Tank is too small for some species
- Rostratus— Tank is too small for some species
- Rosy Red Minnow— No temperature suits every species here
- Royal Pleco— Tank is too small for some species
- Ryukin Goldfish— No temperature suits every species here
- Sailfin Pleco— Tank is too small for some species
- Salvini Cichlid— A predator will eat a tankmate
- Shubunkin Goldfish— No temperature suits every species here
- Silver Arowana— Tank is too small for some species
- Strawberry Rasbora— Only one pH value suits everyone — no margin
- Striped Raphael Catfish— A predator will eat a tankmate
- Telescope Goldfish— No temperature suits every species here
- Texas Cichlid— A predator will eat a tankmate
- Uaru (Triangle Cichlid)— Only one pH value suits everyone — no margin
- Venustus (Giraffe Cichlid)— A predator will eat a tankmate
- Wolf Cichlid— Tank is too small for some species
Frequently asked questions
- What are the best tank mates for Guppy?
- Top engine-approved picks: Platy, Forktail Rainbowfish, Mystery Snail, Amano Shrimp, Dwarf Orange Crayfish. Each shares a workable temperature and pH band with Guppy and clears the temperament and predation checks in a spacious reference tank.
- What fish should you avoid keeping with Guppy?
- The engine red-flags Adonis Pleco, Altum Angelfish, Angelfish among others — for incompatible water, temperament conflict or predation risk. The avoid list above states the specific reason for each pairing.