Asia
Least rasbora
Boraras urophthalmoides
Temp24–28°C
pH6–7
Size2 cm
DietOmnivore
SwimMiddle
DifficultyEasy
Least rasbora
Boraras urophthalmoides
fish
Compact fish (adult size about 10 cm or less)
Species with adult length at or below 10 cm where a measurement exists — confirm group needs and swimming space.
154 species
- Southern Thailand (Tapi river drainage)
Strawberry Rasbora
Boraras naevus
Temp20–28°CpH5–7Size2 cmDietInsectivoreSwimMiddleDifficultyModerateStrawberry Rasbora
Boraras naevus
- Asia
Emerald Dwarf Rasbora
Danio erythromicron
Temp20–24°CpH7–8Size2 cmDietOmnivoreSwimMiddleDifficultyEasyEmerald Dwarf Rasbora
Danio erythromicron
- Asia
Chili Rasbora
Boraras brigittae
Temp20–28°CpH4–7Size2 cmDietInsectivoreSwimMiddleDifficultyModerateChili Rasbora
Boraras brigittae
- South America
Ember tetra
Hyphessobrycon amandae
Temp20–28°CpH5–7Size2 cmDietOmnivoreSwimMiddleDifficultyEasyEmber tetra
Hyphessobrycon amandae
- Asia
Scarlet badis
Dario dario
Temp18–26°CpH6.5–8.5Size2 cmDietCarnivoreSwimMiddleDifficultyModerateScarlet badis
Dario dario
- Asia
Galaxy rasbora
Danio margaritatus
Temp20–26°CpH6.5–7.5Size2.1 cmDietOmnivoreSwimMiddleDifficultyEasyGalaxy rasbora
Danio margaritatus
- Asia
Surrufus Stiphodon
Stiphodon surrufus
Temp—pH—Size2.1 cmDietOmnivoreSwimBottomDifficultyHardSurrufus Stiphodon
Stiphodon surrufus
- Sulawesi, Indonesia
Cardinal Shrimp
Caridina dennerli
Temp26–30°CpH7.5–8.5Size2.5 cmDietOmnivoreSwimBottomDifficultyExpertCardinal Shrimp
Caridina dennerli
- Asia
Neon Blue Rasbora
Sundadanio axelrodi
Temp23–26°CpH4–6.5Size2.5 cmDietOmnivoreSwimMiddleDifficultyHardNeon Blue Rasbora
Sundadanio axelrodi
- Asia
Malabar pufferfish
Carinotetraodon travancoricus
Temp22–28°CpH6.8–8Size2.5 cmDietCarnivoreSwimBottomDifficultyExpertMalabar pufferfish
Carinotetraodon travancoricus
- Asia
Dwarf rasbora
Boraras maculatus
Temp20–28°CpH5–6.5Size2.5 cmDietOmnivoreSwimMiddleDifficultyModerateDwarf rasbora
Boraras maculatus
- Asia
Microdevario
Microdevario microphthalma
Temp20–26°CpH6.8–7.5Size2.6 cmDietInsectivoreSwimMiddleDifficultyEasyMicrodevario
Microdevario microphthalma
- Asia
White Seam Betta
Betta albimarginata
Temp23–28°CpH4–6.5Size2.8 cmDietInsectivoreSwimMiddleDifficultyModerateWhite Seam Betta
Betta albimarginata
- Asia
Daisy's Rice Fish
Oryzias woworae
Temp23–27°CpH6–7.5Size2.8 cmDietOmnivoreSwimMiddleDifficultyModerateDaisy's Rice Fish
Oryzias woworae
- Taiwan (selectively bred)
Rili Shrimp
Neocaridina davidi var. rili
Temp18–28°CpH6.5–8Size3 cmDietOmnivoreSwimMiddleDifficultyEasyRili Shrimp
Neocaridina davidi var. rili
- South America
Eppley's otocinclus
Parotocinclus eppleyi
Temp22–26°CpH6–7Size3 cmDietHerbivoreSwimBottomDifficultyModerateEppley's otocinclus
Parotocinclus eppleyi
- Myanmar (Lake Inlé)
Sawbwa barb
Sawbwa resplendens
Temp18–22°CpH6–8Size3 cmDietOmnivoreSwimMiddleDifficultyModerateSawbwa barb
Sawbwa resplendens
- South America
Pygmy corydoras
Corydoras pygmaeus
Temp22–26°CpH6.4–7.4Size3 cmDietOmnivoreSwimBottomDifficultyEasyPygmy corydoras
Corydoras pygmaeus
- South America
Neon tetra
Paracheirodon innesi
Temp21–25°CpH4–7.5Size3 cmDietOmnivoreSwimMiddleDifficultyEasyNeon tetra
Paracheirodon innesi
- Asia
Gold Ring Danio
Brachydanio tinwini
Temp18–26°CpH6.5–7.5Size3 cmDietOmnivoreSwimTopDifficultyModerateGold Ring Danio
Brachydanio tinwini
- Taiwan (selectively bred)
Yellow Shrimp
Neocaridina davidi var. yellow
Temp18–28°CpH6.5–8Size3 cmDietOmnivoreSwimMiddleDifficultyEasyYellow Shrimp
Neocaridina davidi var. yellow
- Asia
Asian Stone Catfish
Hara jerdoni
Temp18–24°CpH5.6–7.6Size3 cmDietOmnivoreSwimBottomDifficultyModerateAsian Stone Catfish
Hara jerdoni
- East Africa (Kenya, Tanzania, Mozambique)
Zebra Nerite
Vittina natalensis
Temp22–28°CpH7–8.5Size3 cmDietHerbivoreSwimBottomDifficultyModerateZebra Nerite
Vittina natalensis
- Taiwan (selectively bred)
Blue Velvet Shrimp
Neocaridina davidi var. blue
Temp18–28°CpH6.5–8Size3 cmDietOmnivoreSwimMiddleDifficultyModerateBlue Velvet Shrimp
Neocaridina davidi var. blue
- Taiwan (selectively bred from wild Neocaridina davidi)
Cherry Shrimp
Neocaridina davidi
Temp18–28°CpH6.5–8Size3 cmDietOmnivoreSwimBottomDifficultyEasyCherry Shrimp
Neocaridina davidi
- Southeast Asia (Indonesia, Thailand, Malaysia)
Assassin Snail
Anentome helena
Temp20–28°CpH7.2–8.5Size3 cmDietCarnivoreSwimBottomDifficultyEasyAssassin Snail
Anentome helena
- Southeast Asia (Indonesia, Philippines)
Onion Snail
Vittina olivacea
Temp22–28°CpH7–8.5Size3 cmDietHerbivoreSwimMiddleDifficultyModerateOnion Snail
Vittina olivacea
- Asia
Glowlight Danio
Danio choprae
Temp16–26°CpH6.5–7.5Size3.1 cmDietOmnivoreSwimMiddleDifficultyModerateGlowlight Danio
Danio choprae
- Asia
Red Cherry Rasbora
Rasbora lacrimula
Temp22–26°CpH4–7.5Size3.1 cmDietInsectivoreSwimMiddleDifficultyEasyRed Cherry Rasbora
Rasbora lacrimula
- South America
Black neon tetra
Hyphessobrycon herbertaxelrodi
Temp20–28°CpH5–7.5Size3.2 cmDietOmnivoreSwimMiddleDifficultyEasyBlack neon tetra
Hyphessobrycon herbertaxelrodi
- South America
Red phantom tetra
Hyphessobrycon sweglesi
Temp20–28°CpH4.5–7.5Size3.2 cmDietOmnivoreSwimMiddleDifficultyModerateRed phantom tetra
Hyphessobrycon sweglesi
- South America
Common otocinclus
Otocinclus vittatus
Temp20–25°CpH6–7.5Size3.3 cmDietHerbivoreSwimBottomDifficultyEasyCommon otocinclus
Otocinclus vittatus
- South America
Nannoptopoma
Nannoptopoma sternoptychum
Temp—pH—Size3.3 cmDietOmnivoreSwimBottomDifficultyModerateNannoptopoma
Nannoptopoma sternoptychum
- South America
Cardinal tetra
Paracheirodon axelrodi
Temp23–29°CpH3.5–7.5Size3.5 cmDietOmnivoreSwimMiddleDifficultyModerateCardinal tetra
Paracheirodon axelrodi
- Oceania
Honey blue eye
Pseudomugil mellis
Temp20–28°CpH6–7.5Size3.5 cmDietOmnivoreSwimMiddleDifficultyModerateHoney blue eye
Pseudomugil mellis
- West Africa
Banded panchax
Epiplatys annulatus
Temp23–26°CpH5.5–7Size3.5 cmDietInsectivoreSwimTopDifficultyModerateBanded panchax
Epiplatys annulatus
- Asia
Javanese ricefish
Oryzias javanicus
Temp24–29°CpH7–9Size3.5 cmDietOmnivoreSwimMiddleDifficultyModerateJavanese ricefish
Oryzias javanicus
- Asia
Japanese rice fish
Oryzias latipes
Temp16–22°CpH6.5–8.5Size3.6 cmDietOmnivoreSwimAll levelsDifficultyModerateJapanese rice fish
Oryzias latipes
- Upper Rio Madeira basin (Bolivia/Brazil), Pantanal
Black phantom tetra
Hyphessobrycon megalopterus
Temp20–28°CpH5–7Size3.6 cmDietOmnivoreSwimMiddleDifficultyEasyBlack phantom tetra
Hyphessobrycon megalopterus
- Asia
Zhou's goby
Rhinogobius zhoui
Temp19–24°CpH7–7.8Size3.6 cmDietInsectivoreSwimBottomDifficultyHardZhou's goby
Rhinogobius zhoui
- Asia
Dwarf danio
Danio nigrofasciatus
Temp18–26°CpH6.5–7.5Size3.7 cmDietOmnivoreSwimMiddleDifficultyEasyDwarf danio
Danio nigrofasciatus
- South America
Lemon tetra
Hyphessobrycon pulchripinnis
Temp20–28°CpH5–7.5Size3.8 cmDietOmnivoreSwimMiddleDifficultyModerateLemon tetra
Hyphessobrycon pulchripinnis
- Oceania
Spotted blue-eye
Pseudomugil gertrudae
Temp21–28°CpH4.5–7.5Size3.8 cmDietPlanktivoreSwimMiddleDifficultyModerateSpotted blue-eye
Pseudomugil gertrudae
- South America
Umbrella cichlid
Apistogramma borellii
Temp20–26°CpH6–8Size3.9 cmDietCarnivoreSwimBottomDifficultyModerateUmbrella cichlid
Apistogramma borellii
- Asia
White cloud mountain minnow
Tanichthys albonubes
Temp14–22°CpH6–8Size4 cmDietOmnivoreSwimMiddleDifficultyEasyWhite cloud mountain minnow
Tanichthys albonubes
- Asia
Snakehead Betta
Betta channoides
Temp23–30°CpH4–6.5Size4 cmDietCarnivoreSwimMiddleDifficultyModerateSnakehead Betta
Betta channoides
- Asia
Pygmy gourami
Trichopsis pumila
Temp22–28°CpH5–7.5Size4 cmDietOmnivoreSwimMiddleDifficultyModeratePygmy gourami
Trichopsis pumila
- Oceania
Threadfin rainbowfish
Iriatherina werneri
Temp22–30°CpH5–8Size4 cmDietOmnivoreSwimMiddleDifficultyModerateThreadfin rainbowfish
Iriatherina werneri
- South America
Rosy tetra
Hyphessobrycon rosaceus
Temp23.9–27.8°CpH5.5–7.5Size4 cmDietOmnivoreSwimMiddleDifficultyModerateRosy tetra
Hyphessobrycon rosaceus
- South America
Glowlight tetra
Hemigrammus erythrozonus
Temp24–28°CpH5.5–7.5Size4 cmDietOmnivoreSwimMiddleDifficultyEasyGlowlight tetra
Hemigrammus erythrozonus
- Southeastern United States
Ghost shrimp
Palaemon paludosus
Temp18–28°CpH6.5–8Size4 cmDietOmnivoreSwimMiddleDifficultyEasyGhost shrimp
Palaemon paludosus
- South America
Jewel tetra
Hyphessobrycon eques
Temp20–28°CpH5–7.5Size4 cmDietOmnivoreSwimMiddleDifficultyModerateJewel tetra
Hyphessobrycon eques
- Oceania
Pelew Stiphodon
Stiphodon pelewensis
Temp—pH—Size4.1 cmDietOmnivoreSwimBottomDifficultyHardPelew Stiphodon
Stiphodon pelewensis
- South America
Ram cichlid
Mikrogeophagus ramirezi
Temp27–30°CpH4–7Size4.2 cmDietOmnivoreSwimMiddleDifficultyModerateRam cichlid
Mikrogeophagus ramirezi
- South America
Electric blue ram
Mikrogeophagus ramirezi var.
Temp26–30°CpH5–6Size4.2 cmDietOmnivoreSwimMiddleDifficultyModerateElectric blue ram
Mikrogeophagus ramirezi var.
- South America
Ornate tetra
Hyphessobrycon bentosi
Temp20–28°CpH5–7.5Size4.3 cmDietOmnivoreSwimMiddleDifficultyModerateOrnate tetra
Hyphessobrycon bentosi
- Asia
Black Towuti goby
Mugilogobius hitam
Temp24–28°CpH7–8Size4.3 cmDietInsectivoreSwimBottomDifficultyExpertBlack Towuti goby
Mugilogobius hitam
- Africa
Temporaris Shell Dweller
Telmatochromis temporalis
Temp24–27°CpH8–9Size4.4 cmDietOmnivoreSwimMiddleDifficultyModerateTemporaris Shell Dweller
Telmatochromis temporalis
- South America
Agassiz's dwarf cichlid
Apistogramma agassizii
Temp22–29°CpH5–7Size4.4 cmDietCarnivoreSwimBottomDifficultyModerateAgassiz's dwarf cichlid
Apistogramma agassizii
- South America
Zebra Oto
Otocinclus cocama
Temp21–25°CpH6–7.5Size4.5 cmDietHerbivoreSwimBottomDifficultyModerateZebra Oto
Otocinclus cocama
- South America
Head-and-taillight tetra
Hemigrammus ocellifer
Temp24–28°CpH5.5–7.5Size4.5 cmDietOmnivoreSwimMiddleDifficultyModerateHead-and-taillight tetra
Hemigrammus ocellifer
- Asia
Blue danio
Brachydanio kerri
Temp18–26°CpH6.5–7.5Size4.5 cmDietOmnivoreSwimMiddleDifficultyEasyBlue danio
Brachydanio kerri
- Asia
Harlequin rasbora
Trigonostigma heteromorpha
Temp21–28°CpH5–7.5Size4.5 cmDietOmnivoreSwimMiddleDifficultyEasyHarlequin rasbora
Trigonostigma heteromorpha
- Asia
Orange Fin Danio
Danio kyathit
Temp16–26°CpH6.5–7.5Size4.5 cmDietCarnivoreSwimMiddleDifficultyEasyOrange Fin Danio
Danio kyathit
- Lake Tanganyika
Multies
Neolamprologus multifasciatus
Temp24–27°CpH7.5–9Size4.5 cmDietOmnivoreSwimMiddleDifficultyModerateMulties
Neolamprologus multifasciatus
- South America
Endlers guppy
Poecilia wingei
Temp24–30°CpH7–8.5Size4.5 cmDietOmnivoreSwimMiddleDifficultyEasyEndlers guppy
Poecilia wingei
- Asia
Checkered barb
Oliotius oligolepis
Temp18–25°CpH5.5–7.5Size4.5 cmDietOmnivoreSwimMiddleDifficultyEasyCheckered barb
Oliotius oligolepis
- Asia
Ruby barb
Pethia padamya
Temp20–25°CpH6.5–7.5Size4.6 cmDietOmnivoreSwimMiddleDifficultyModerateRuby barb
Pethia padamya
- Asia
Blue Belly Goby
Stiphodon percnopterygionus
Temp22–26°CpH6.5–7.5Size5 cmDietHerbivoreSwimBottomDifficultyModerateBlue Belly Goby
Stiphodon percnopterygionus
- South America
Guppy
Poecilia reticulata
Temp17–28°CpH7–8Size5 cmDietOmnivoreSwimTopDifficultyEasyGuppy
Poecilia reticulata
- Asia
Red Neon Goby
Stiphodon atropurpureus
Temp22–26°CpH6.5–7.5Size5 cmDietHerbivoreSwimMiddleDifficultyModerateRed Neon Goby
Stiphodon atropurpureus
- Upper Amazon, Peru
Panda corydoras
Corydoras panda
Temp22–25°CpH6–7.4Size5 cmDietOmnivoreSwimBottomDifficultyEasyPanda corydoras
Corydoras panda
- Asia
Cobalt Blue Goby
Stiphodon semoni
Temp22–28°CpH6.5–7.5Size5 cmDietHerbivoreSwimBottomDifficultyModerateCobalt Blue Goby
Stiphodon semoni
- Asia
Zebra danio
Danio rerio
Temp18–25°CpH6–8Size5 cmDietOmnivoreSwimAll levelsDifficultyEasyZebra danio
Danio rerio
- South America
Cockatoo cichlid
Apistogramma cacatuoides
Temp22–29°CpH6–8Size5 cmDietCarnivoreSwimBottomDifficultyEasyCockatoo cichlid
Apistogramma cacatuoides
- South America
Rummy-nose tetra
Hemigrammus rhodostomus
Temp24–27°CpH5.5–7Size5 cmDietOmnivoreSwimMiddleDifficultyEasyRummy-nose tetra
Hemigrammus rhodostomus
- Asia
Chocolate gourami
Sphaerichthys osphromenoides
Temp26–31°CpH4–6.5Size5 cmDietCarnivoreSwimMiddleDifficultyModerateChocolate gourami
Sphaerichthys osphromenoides
- Asia
Blackline rasbora
Rasbora borapetensis
Temp22–26°CpH6–7.5Size5 cmDietOmnivoreSwimMiddleDifficultyModerateBlackline rasbora
Rasbora borapetensis
- Asia
Chen Hillstream Loach
Pseudogastromyzon cheni
Temp20–25°CpH6.5–7.5Size5 cmDietOmnivoreSwimBottomDifficultyHardChen Hillstream Loach
Pseudogastromyzon cheni
- Japan, Taiwan, Korea
Amano Shrimp
Caridina multidentata
Temp18–28°CpH6.5–7.5Size5 cmDietHerbivoreSwimAll levelsDifficultyEasyAmano Shrimp
Caridina multidentata
- South America
Silvertip tetra
Hasemania nana
Temp23–28°CpH6–8Size5 cmDietOmnivoreSwimMiddleDifficultyModerateSilvertip tetra
Hasemania nana
- Asia
Cherry barb
Puntius titteya
Temp20–27°CpH6–8Size5 cmDietOmnivoreSwimMiddleDifficultyModerateCherry barb
Puntius titteya
- South America
Splash tetra
Copella arnoldi
Temp20–28°CpH4–7.5Size5.5 cmDietOmnivoreSwimMiddleDifficultyModerateSplash tetra
Copella arnoldi
- Africa
Blue lyretail
Fundulopanchax gardneri
Temp20–26°CpH6–7.5Size5.5 cmDietCarnivoreSwimAll levelsDifficultyModerateBlue lyretail
Fundulopanchax gardneri
- Asia
Black ruby barb
Pethia nigrofasciata
Temp20–27°CpH5.5–7.5Size5.5 cmDietOmnivoreSwimMiddleDifficultyEasyBlack ruby barb
Pethia nigrofasciata
- South America
Palespotted corydoras
Corydoras gossei
Temp24–28°CpH5.5–7.5Size5.5 cmDietOmnivoreSwimBottomDifficultyEasyPalespotted corydoras
Corydoras gossei
- Asia
Fiveband barb
Desmopuntius pentazona
Temp21–26°CpH4–7Size5.5 cmDietOmnivoreSwimMiddleDifficultyEasyFiveband barb
Desmopuntius pentazona
- South America
Leopard corydoras
Corydoras julii
Temp20–26°CpH6–8Size5.5 cmDietOmnivoreSwimBottomDifficultyEasyLeopard corydoras
Corydoras julii
- Asia
Crescent betta
Betta imbellis
Temp20–28°CpH5–7.5Size5.5 cmDietCarnivoreSwimTopDifficultyModerateCrescent betta
Betta imbellis
- Ganges/Brahmaputra basins, northern India, Bangladesh, Nepal
Honey gourami
Trichogaster chuna
Temp22–27°CpH6–7.5Size5.5 cmDietInsectivoreSwimMiddleDifficultyEasyHoney gourami
Trichogaster chuna
- Asia
Reticulated hillstream loach
Sewellia lineolata
Temp18–24°CpH6.5–7.5Size5.7 cmDietOmnivoreSwimBottomDifficultyModerateReticulated hillstream loach
Sewellia lineolata
- South America
Adolf's catfish
Corydoras adolfoi
Temp22–26°CpH6–7Size5.7 cmDietOmnivoreSwimBottomDifficultyModerateAdolf's catfish
Corydoras adolfoi
- Africa
Gold Shell Dweller
Lamprologus ocellatus
Temp23–27°CpH7.5–9Size5.8 cmDietOmnivoreSwimMiddleDifficultyModerateGold Shell Dweller
Lamprologus ocellatus
- Asia
Panda Loach
Yaoshania pachychilus
Temp20–24°CpH6.5–7.5Size5.8 cmDietOmnivoreSwimMiddleDifficultyModeratePanda Loach
Yaoshania pachychilus
- South America
Buenos Aires tetra
Hyphessobrycon anisitsi
Temp16–28°CpH5.5–8.5Size6 cmDietOmnivoreSwimMiddleDifficultyModerateBuenos Aires tetra
Hyphessobrycon anisitsi
- Asia
Sumatra barb
Puntigrus tetrazona
Temp20–26°CpH5–8Size6 cmDietOmnivoreSwimMiddleDifficultyEasySumatra barb
Puntigrus tetrazona
- Asia
Chameleon fish
Badis badis
Temp15–25°CpH6–7.5Size6 cmDietInsectivoreSwimBottomDifficultyModerateChameleon fish
Badis badis
- South America
Twosaddle corydoras
Corydoras weitzmani
Temp22–26°CpH6–7.2Size6 cmDietOmnivoreSwimBottomDifficultyModerateTwosaddle corydoras
Corydoras weitzmani
- Oceania
Desert goby
Chlamydogobius eremius
Temp20–28°CpH7–8.5Size6 cmDietOmnivoreSwimMiddleDifficultyModerateDesert goby
Chlamydogobius eremius
- Upper Amazon basin (Brazil/Peru/Colombia)
Bleeding-heart tetra
Hyphessobrycon erythrostigma
Temp21–28°CpH4–7.5Size6 cmDietOmnivoreSwimMiddleDifficultyModerateBleeding-heart tetra
Hyphessobrycon erythrostigma
- Oceania
Forktail rainbowfish
Pseudomugil furcatus
Temp24–28°CpH7–8Size6 cmDietOmnivoreSwimMiddleDifficultyModerateForktail rainbowfish
Pseudomugil furcatus
- South America
Black widow tetra
Gymnocorymbus ternetzi
Temp20–26°CpH6–7Size6 cmDietOmnivoreSwimMiddleDifficultyEasyBlack widow tetra
Gymnocorymbus ternetzi
- South America
Mendezs Dwarf Cichlid
Apistogramma mendezi
Temp23–29°CpH4–6Size6 cmDietCarnivoreSwimBottomDifficultyModerateMendezs Dwarf Cichlid
Apistogramma mendezi
- South America
Blackline penguinfish
Thayeria boehlkei
Temp22–28°CpH5.5–8Size6 cmDietOmnivoreSwimMiddleDifficultyModerateBlackline penguinfish
Thayeria boehlkei
- South America
Diamond tetra
Moenkhausia pittieri
Temp24–28°CpH5.5–7Size6 cmDietOmnivoreSwimMiddleDifficultyModerateDiamond tetra
Moenkhausia pittieri
- Central America
Southern platyfish
Xiphophorus maculatus
Temp20–26°CpH7–8.2Size6 cmDietOmnivoreSwimMiddleDifficultyEasySouthern platyfish
Xiphophorus maculatus
- South America
Glass bloodfin
Prionobrama filigera
Temp23–27°CpH6–7.5Size6 cmDietOmnivoreSwimTopDifficultyEasyGlass bloodfin
Prionobrama filigera
- South America
Leopard Frog Pleco
Peckoltia compta
Temp24–29°CpH6–7.5Size6.2 cmDietOmnivoreSwimBottomDifficultyModerateLeopard Frog Pleco
Peckoltia compta
- Asia
Siamese fighting fish
Betta splendens
Temp22–30°CpH6–8Size6.5 cmDietOmnivoreSwimMiddleDifficultyModerateSiamese fighting fish
Betta splendens
- Asia
Alien betta
Betta splendens hybrid
Temp24–30°CpH6–7.5Size6.5 cmDietCarnivoreSwimAll levelsDifficultyEasyAlien betta
Betta splendens hybrid
- South America
Sterba's cory
Corydoras sterbai
Temp24–28°CpH6–7.6Size6.5 cmDietOmnivoreSwimBottomDifficultyEasySterba's cory
Corydoras sterbai
- Asia
Hillstream loach
Gastromyzon punctulatus
Temp23–25°CpH6.5–7.5Size6.5 cmDietOmnivoreSwimBottomDifficultyModerateHillstream loach
Gastromyzon punctulatus
- Africa
Gold Cap Caudopunctatus
Neolamprologus caudopunctatus
Temp23–25°CpH7.5–8.5Size6.5 cmDietCarnivoreSwimBottomDifficultyEasyGold Cap Caudopunctatus
Neolamprologus caudopunctatus
- Asia
Galaxy betta
Betta splendens var.
Temp24–30°CpH6–8Size6.5 cmDietCarnivoreSwimMiddleDifficultyModerateGalaxy betta
Betta splendens var.
- Asia
Glass catfish
Kryptopterus vitreolus
Temp20–26°CpH4–7Size6.5 cmDietCarnivoreSwimTopDifficultyModerateGlass catfish
Kryptopterus vitreolus
- Río Acandí, Chocó, Colombia
Colombian Tetra
Hyphessobrycon columbianus
Temp20–28°CpH5–7.5Size6.5 cmDietOmnivoreSwimMiddleDifficultyModerateColombian Tetra
Hyphessobrycon columbianus
- South America
Schwartz's catfish
Corydoras schwartzi
Temp22–24°CpH6–7.5Size7 cmDietOmnivoreSwimBottomDifficultyModerateSchwartz's catfish
Corydoras schwartzi
- South America
Peppered corydoras
Corydoras paleatus
Temp22–26°CpH6–7Size7 cmDietOmnivoreSwimBottomDifficultyEasyPeppered corydoras
Corydoras paleatus
- Asia
Beaufortia
Beaufortia pingi
Temp18–24°CpH6.5–7.5Size7.4 cmDietHerbivoreSwimBottomDifficultyModerateBeaufortia
Beaufortia pingi
- Central America
Molly
Poecilia sphenops
Temp24–28°CpH7.5–8.2Size7.5 cmDietOmnivoreSwimAll levelsDifficultyModerateMolly
Poecilia sphenops
- South America
Bronze corydoras
Corydoras aeneus
Temp22–26°CpH6–8Size7.5 cmDietOmnivoreSwimBottomDifficultyEasyBronze corydoras
Corydoras aeneus
- Asia
Rosy barb
Pethia conchonius
Temp16–24°CpH6–8Size7.5 cmDietOmnivoreSwimMiddleDifficultyEasyRosy barb
Pethia conchonius
- Asia
Chinese barb
Barbodes semifasciolatus
Temp16–24°CpH6–8Size7.5 cmDietOmnivoreSwimMiddleDifficultyEasyChinese barb
Barbodes semifasciolatus
- South America
Oxyropsis
Oxyropsis carinata
Temp26–29°CpH6–7.5Size7.6 cmDietOmnivoreSwimBottomDifficultyModerateOxyropsis
Oxyropsis carinata
- Asia
Slender Bitterling
Tanakia himantegus
Temp15–28°CpH6.5–7.8Size8 cmDietOmnivoreSwimMiddleDifficultyModerateSlender Bitterling
Tanakia himantegus
- Indonesia (Mamberamo River, Papua)
Dwarf rainbowfish
Melanotaenia praecox
Temp23–28°CpH6.8–7.5Size8 cmDietOmnivoreSwimMiddleDifficultyModerateDwarf rainbowfish
Melanotaenia praecox
- Asia
Celebes rainbowfish
Marosatherina ladigesi
Temp22–28°CpH7–8Size8 cmDietOmnivoreSwimAll levelsDifficultyModerateCelebes rainbowfish
Marosatherina ladigesi
- North America
Rainbow shiner
Notropis chrosomus
Temp10–22°CpH6.5–7.5Size8 cmDietOmnivoreSwimMiddleDifficultyModerateRainbow shiner
Notropis chrosomus
- South America
Zebra pleco
Hypancistrus zebra
Temp26–30°CpH6–7.5Size8 cmDietCarnivoreSwimBottomDifficultyModerateZebra pleco
Hypancistrus zebra
- Asia
Eyespot pufferfish
Tetraodon biocellatus
Temp22.2–26.1°CpH6.5–7.5Size8 cmDietOmnivoreSwimMiddleDifficultyModerateEyespot pufferfish
Tetraodon biocellatus
- East Asia (China, Japan, Korea)
Rose bitterling
Rhodeus ocellatus
Temp5–25°CpH7–8.5Size8 cmDietOmnivoreSwimMiddleDifficultyModerateRose bitterling
Rhodeus ocellatus
- South America
Bolivian Ram
Mikrogeophagus altispinosus
Temp24–28°CpH6–7.5Size8 cmDietOmnivoreSwimMiddleDifficultyModerateBolivian Ram
Mikrogeophagus altispinosus
- North America
Butterfly splitfin
Ameca splendens
Temp20–26°CpH7–8Size8 cmDietOmnivoreSwimMiddleDifficultyModerateButterfly splitfin
Ameca splendens
- Borneo (Southeast Asia)
Borneo Loach
Pangio shelfordii
Temp24–29°CpH6–7Size8 cmDietOmnivoreSwimMiddleDifficultyModerateBorneo Loach
Pangio shelfordii
- Africa
Congo tetra
Phenacogrammus interruptus
Temp23–28°CpH6–7.5Size8 cmDietOmnivoreSwimMiddleDifficultyModerateCongo tetra
Phenacogrammus interruptus
- Sri Lanka
Melon Barb
Pethia fasciata
Temp22–26°CpH6–7Size8 cmDietOmnivoreSwimMiddleDifficultyModerateMelon Barb
Pethia fasciata
- South Asia (Pakistan, India, Bangladesh)
Dwarf gourami
Trichogaster lalius
Temp22–27°CpH6–7.5Size8.8 cmDietOmnivoreSwimMiddleDifficultyModerateDwarf gourami
Trichogaster lalius
- Asia
Zebra loach
Botia striata
Temp21–26°CpH6–7.5Size9 cmDietCarnivoreSwimBottomDifficultyModerateZebra loach
Botia striata
- Lake Tanganyika
Princess of Burundi
Neolamprologus brichardi
Temp23–27°CpH8–9Size9 cmDietOmnivoreSwimMiddleDifficultyModeratePrincess of Burundi
Neolamprologus brichardi
- Asia
Panda Garra
Garra flavatra
Temp22–27°CpH6.5–7.5Size9 cmDietOmnivoreSwimMiddleDifficultyModeratePanda Garra
Garra flavatra
- East Asia (China, Japan, Korea, Taiwan)
Chinese Bitterling
Rhodeus ocellatus
Temp18–24°CpH6.5–7Size9.2 cmDietOmnivoreSwimMiddleDifficultyModerateChinese Bitterling
Rhodeus ocellatus
- Asia
Lizard Loach
Homaloptera orthogoniata
Temp20–25°CpH6–7.5Size9.5 cmDietOmnivoreSwimBottomDifficultyModerateLizard Loach
Homaloptera orthogoniata
- Africa
Rainbow krib
Pelvicachromis pulcher
Temp24–27°CpH5–7.5Size10 cmDietOmnivoreSwimMiddleDifficultyModerateRainbow krib
Pelvicachromis pulcher
- Asia
Striped panchax
Aplocheilus lineatus
Temp22–28°CpH6–7.5Size10 cmDietCarnivoreSwimTopDifficultyModerateStriped panchax
Aplocheilus lineatus
- Central America
Convict cichlid
Amatitlania nigrofasciata
Temp24–28°CpH6–8Size10 cmDietOmnivoreSwimBottomDifficultyEasyConvict cichlid
Amatitlania nigrofasciata
- Madagascar
Madagascar Rainbow
Bedotia madagascarensis
Temp—pH4.5–7.5Size10 cmDietOmnivoreSwimMiddleDifficultyModerateMadagascar Rainbow
Bedotia madagascarensis
- South America
Chessboard cichlid
Dicrossus filamentosus
Temp27–30°CpH4.5–7Size10 cmDietOmnivoreSwimBottomDifficultyModerateChessboard cichlid
Dicrossus filamentosus
- Africa
Blue streak hap
Labidochromis caeruleus
Temp24–28°CpH7.7–8.6Size10 cmDietOmnivoreSwimMiddleDifficultyModerateBlue streak hap
Labidochromis caeruleus
- Southeast Asia (Indonesia, Malaysia, Thailand)
Bamboo Shrimp
Atyopsis moluccensis
Temp22–28°CpH6.5–7.5Size10 cmDietDetritivoreSwimBottomDifficultyModerateBamboo Shrimp
Atyopsis moluccensis
- Asia
Walking snakehead
Channa orientalis
Temp16–24°CpH5–7.5Size10 cmDietCarnivoreSwimBottomDifficultyModerateWalking snakehead
Channa orientalis
- Africa
Bluegray mbuna
Melanochromis johannii
Temp24–28°CpH7.5–8.6Size10 cmDietHerbivoreSwimBottomDifficultyModerateBluegray mbuna
Melanochromis johannii
- Africa
Leleupi Cichlid
Neolamprologus leleupi
Temp23–27°CpH7.5–9Size10 cmDietCarnivoreSwimMiddleDifficultyModerateLeleupi Cichlid
Neolamprologus leleupi
- Asia
Clown rasbora
Rasbora kalochroma
Temp23–28°CpH5–7.5Size10 cmDietOmnivoreSwimMiddleDifficultyModerateClown rasbora
Rasbora kalochroma
