fish
Species typically occupying the lower water column — pair with appropriate substrate and avoid overcrowding the floor zone.
88 species
Corydoras adolfoi
Keep a group on clean fine sand or smooth, rounded gravel.
Corydoras adolfoi
Keep a group on clean fine sand or smooth, rounded gravel.
Apistogramma agassizii
Apistogramma agassizii
Botia almorhae
Botia almorhae
Pseudomystus siamensis
Pseudomystus siamensis
Hara jerdoni
Hara jerdoni
Anentome helena
Anentome helena
Atyopsis moluccensis
Atyopsis moluccensis
Potamotrygon henlei
Potamotrygon henlei
Apteronotus albifrons
Provide effective filtration, sheltered retreats and at least 450 L for one adult; allow more room for additional fish.
Apteronotus albifrons
Provide effective filtration, sheltered retreats and at least 450 L for one adult; allow more room for additional fish.
Stiphodon percnopterygionus
Stiphodon percnopterygionus
Panaque suttonorum
Provide wood alongside varied food, sheltered retreats and effective filtration.
Panaque suttonorum
Provide wood alongside varied food, sheltered retreats and effective filtration.
Melanochromis johannii
Melanochromis johannii
Pangio shelfordii
Pangio shelfordii
Osteogaster aenea
Keep a group with a base of at least 80 × 30 cm and clean sand or smooth gravel.
Osteogaster aenea
Keep a group with a base of at least 80 × 30 cm and clean sand or smooth gravel.
Caridina dennerli
Caridina dennerli
Badis badis
Badis badis
Pseudogastromyzon cheni
Maintain strong oxygenation, water movement and mature biofilm on rocks.
Pseudogastromyzon cheni
Maintain strong oxygenation, water movement and mature biofilm on rocks.
Neocaridina davidi
Neocaridina davidi
Dicrossus filamentosus
Dicrossus filamentosus
Gyrinocheilus aymonieri
Adults are territorial and may damage tankmates; a group of six is only an option in a very large tank.
Gyrinocheilus aymonieri
Fin nipper — avoid with long-finned tankmates
Adults are territorial and may damage tankmates; a group of six is only an option in a very large tank.
Chromobotia macracanthus
Plan for adult group space and hiding places; use a mature tank and a secure cover.
Chromobotia macracanthus
Plan for adult group space and hiding places; use a mature tank and a secure cover.
Stiphodon semoni
Stiphodon semoni
Apistogramma cacatuoides
Apistogramma cacatuoides
Channa pulchra
Channa pulchra
Otocinclus vittatus
Use a mature tank with established biofilm; confirm actual feeding and supplement food.
Otocinclus vittatus
Use a mature tank with established biofilm; confirm actual feeding and supplement food.
Amatitlania nigrofasciata
Amatitlania nigrofasciata
Pangio semicincta
Pangio semicincta
Satanoperca jurupari
Satanoperca jurupari
Gnathonemus petersii
Gnathonemus petersii
Mastacembelus erythrotaenia
Mastacembelus erythrotaenia
Thorichthys meeki
Thorichthys meeki
Epalzeorhynchos kalopterum
Epalzeorhynchos kalopterum
Fin nipper — avoid with long-finned tankmates
Pangio myersi
Pangio myersi
Sturisomatichthys aureus
Provide clean water, sheltered resting places and water circulation.
Sturisomatichthys aureus
Provide clean water, sheltered resting places and water circulation.
Tetraodon lineatus
Keep a single fish alone; provide hard-shelled foods and avoid handling near its teeth.
Tetraodon lineatus
High aggression — research tankmates carefully
Keep a single fish alone; provide hard-shelled foods and avoid handling near its teeth.
Neolamprologus caudopunctatus
Provide sand, rock caves and adequate breeding territory.
Neolamprologus caudopunctatus
Provide sand, rock caves and adequate breeding territory.
Baryancistrus xanthellus
Baryancistrus xanthellus
Channa aurantimaculata
Channa aurantimaculata
Polypterus senegalus
Provide a long, broad aquarium, unrestricted surface access and a secure lid; smaller fish may be eaten.
Polypterus senegalus
Provide a long, broad aquarium, unrestricted surface access and a secure lid; smaller fish may be eaten.
Bunocephalus coracoideus
Bunocephalus coracoideus
Nandopsis haitiensis
Provide ample space and strong filtration; breeding aggression can seriously injure tankmates.
Nandopsis haitiensis
Provide ample space and strong filtration; breeding aggression can seriously injure tankmates.
Gastromyzon punctulatus
Gastromyzon punctulatus
Megalechis thoracata
Megalechis thoracata
Cyrtocara moorii
Cyrtocara moorii
Rocio octofasciata
Rocio octofasciata
High aggression — research tankmates carefully
Hemichromis bimaculatus
Hemichromis bimaculatus
Corydoras julii
Corydoras julii
Peckoltia compta
Peckoltia compta
Homaloptera orthogoniata
Homaloptera orthogoniata
Carinotetraodon travancoricus
Carinotetraodon travancoricus
Ancistrus ranunculus
Ancistrus ranunculus
Apistogramma mendezi
Apistogramma mendezi
Nannoptopoma sternoptychum
Nannoptopoma sternoptychum
Oxyropsis carinata
Oxyropsis carinata
Hoplisoma gossei
Keep a group with clean substrate and a base of at least 90 × 30 cm.
Hoplisoma gossei
Keep a group with clean substrate and a base of at least 90 × 30 cm.
Corydoras panda
Corydoras panda
Macrognathus siamensis
Macrognathus siamensis
Altolamprologus calvus
Provide rock retreats and separate territories for a colony.
Altolamprologus calvus
Provide rock retreats and separate territories for a colony.
Stiphodon pelewensis
Stiphodon pelewensis
Hoplisoma paleatum
Keep a group with clean sand or smooth gravel and a base of at least 61 × 38 cm.
Hoplisoma paleatum
Keep a group with clean sand or smooth gravel and a base of at least 61 × 38 cm.
Pimelodus pictus
Pimelodus pictus
Misgurnus anguillicaudatus
Misgurnus anguillicaudatus
Corydoras pygmaeus
Corydoras pygmaeus
Erythrinus erythrinus
Best kept singly; smaller fish are prey and conspecifics may fight lethally. Fit a secure cover.
Erythrinus erythrinus
High aggression — research tankmates carefully
Best kept singly; smaller fish are prey and conspecifics may fight lethally. Fit a secure cover.
Geophagus surinamensis
Geophagus surinamensis
Sewellia lineolata
Sewellia lineolata
Sturisomatichthys festivus
Sturisomatichthys festivus
Panaque nigrolineatus
Panaque nigrolineatus
Corydoras schwartzi
Corydoras schwartzi
Channa asiatica
Channa asiatica
Potamotrygon motoro
Potamotrygon motoro
Corydoras sterbai
Corydoras sterbai
Scobinancistrus aureatus
Scobinancistrus aureatus
Stiphodon surrufus
Stiphodon surrufus
Satanoperca daemon
Satanoperca daemon
Farlowella vittata
Farlowella vittata
Hoplisoma weitzmani
Keep a group in a mature aquarium with clean sand or smooth, rounded gravel.
Hoplisoma weitzmani
Keep a group in a mature aquarium with clean sand or smooth, rounded gravel.
Apistogramma borellii
Apistogramma borellii
Leporacanthicus galaxias
Leporacanthicus galaxias
Atya gabonensis
Atya gabonensis
Channa orientalis
Channa orientalis
Farlowella acus
Farlowella acus
Loricaria simillima
Loricaria simillima
Botia striata
Botia striata
Vittina natalensis
Provide algae-covered surfaces and stable water; protect snails from predatory tankmates.
Vittina natalensis
Provide algae-covered surfaces and stable water; protect snails from predatory tankmates.
Otocinclus cocama
Otocinclus cocama
Hypancistrus zebra
Hypancistrus zebra
Rhinogobius zhoui
Rhinogobius zhoui