South America
Arawana
Osteoglossum bicirrhosum
Temp20–30°C
pH5–7.5
Size80 cm
DietCarnivore
SwimTop
DifficultyExpert
Adult tank1000 L
Recommended group1
Arawana
Osteoglossum bicirrhosum
fish
Top-swimming aquarium fish
Species typically occupying the upper water column — pair with mid and bottom dwellers to use the full tank height.
11 species
- West Africa
Banded panchax
Epiplatys annulatus
Temp23–26°CpH5.5–7Size3.5 cmDietInsectivoreSwimTopDifficultyModerateAdult tank30 LRecommended group4Banded panchax
Epiplatys annulatus
- Asia
Crescent betta
Betta imbellis
Temp20–28°CpH5–7.5Size6 cmDietCarnivoreSwimTopDifficultyModerateAdult tank41 LRecommended group1Crescent betta
Betta imbellis
- Africa
Freshwater butterflyfish
Pantodon buchholzi
Temp25–30°CpH6–7.5Size11.9 cmDietInsectivoreSwimTopDifficultyModerateAdult tank100 LRecommended group1Freshwater butterflyfish
Pantodon buchholzi
- South America
Glass bloodfin
Prionobrama filigera
Temp23–27°CpH6–7.5Size6 cmDietOmnivoreSwimTopDifficultyEasyAdult tank80 LRecommended group6Glass bloodfin
Prionobrama filigera
- Asia
Glass catfish
Kryptopterus vitreolus
Temp20–26°CpH4–7Size6.5 cmDietCarnivoreSwimTopDifficultyModerateAdult tank100 LRecommended group6Keep a group in a mature, stable tank with calm companions; offer small live or frozen foods daily.
Glass catfish
Kryptopterus vitreolus
Lifespan estimate7 yrSchoolingYesAggression1Keep a group in a mature, stable tank with calm companions; offer small live or frozen foods daily.
- Asia
Gold Ring Danio
Brachydanio tinwini
Temp18–26°CpH6.5–7.5Size3 cmDietOmnivoreSwimTopDifficultyModerateAdult tank41 LRecommended group6Gold Ring Danio
Brachydanio tinwini
- South America
Guppy
Poecilia reticulata
Temp17–28°CpH7–8Size6 cmDietOmnivoreSwimTopDifficultyEasyAdult tank40 LRecommended group3Guppy
Poecilia reticulata
- Asia
Striped panchax
Aplocheilus lineatus
Temp22–25°CpH6–7.5Size10 cmDietCarnivoreSwimTopDifficultyModerateAdult tank100 LRecommended group6Striped panchax
Aplocheilus lineatus
- Asia
Three-lined rasbora
Rasbora trilineata
Temp22–25°CpH5–8Size15 cmDietInsectivoreSwimTopDifficultyEasyAdult tank243 LRecommended group6Three-lined rasbora
Rasbora trilineata
- Asia
Zebra Archerfish
Toxotes blythii
Temp25–28°CpH6.5–8Size15 cmDietCarnivoreSwimTopDifficultyModerateAdult tank350 LRecommended group3Zebra Archerfish
Toxotes blythii