Freshwater
Easy
©AI Generated·ProprietaryOne-line Tetra
Hemigrammus unilineatus
Water temp23 - 28 °CpH Value5.5 - 7.5 pHGH5 - 15 dGHKH2 - 8 dKHMinimum tank volume>= 80 LTank levelMiddle/BottomAdult size5 cm
Encyclopaedia
Freshwater fish
Freshwater species for community aquariums, river biotopes, and planted tanks.
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Visual guideFilter918 cards / 1664
Family
Origin
Tank level
Sociality
Adult size
Freshwater
Intermediate
©AI Generation·ProprietaryOne-spot Betta
Betta unimaculata
Water temp22 - 27 °CpH Value5.5 - 7.5 pHGH1 - 15 dGHKH1 - 7 dKHMinimum tank volume>= 100 LTank levelAll levelsAdult size12 cm
Freshwater
Advanced
©AI Generated·ProprietaryOne-Spotted Demonfish (Satanoperca lilith)
Satanoperca lilith
Water temp27 - 31 °CpH Value4.5 - 6 pHGH1 - 4 dGHKH1 - 2 dKHMinimum tank volume>= 300 LTank levelBottomAdult size25 cm
FreshwaterBrackish
Intermediate
©AI Generated·ProprietaryOrange Chromide
Etroplus maculatus
Water temp22 - 28 °CpH Value7.5 - 8.5 pHGH10 - 25 dGHKH5 - 12 dKHMinimum tank volume>= 100 LTank levelMiddle/BottomAdult size8 cm
Freshwater
Intermediate
©AI Generation·ProprietaryOrange-fin Xingu Pleco (L012/L013)
Peckoltia feldbergae
Water temp25 - 30 °CpH Value6 - 7.5 pHGH2 - 15 dGHKH2 - 10 dKHMinimum tank volume>= 200 LTank levelBottomAdult size16 cm
Freshwater
Easy
©AI Generated·ProprietaryOrange-finned Danio
Danio kyathit
Water temp16 - 26 °CpH Value6.5 - 7.5 pHGH4 - 12 dGHKH2 - 6 dKHMinimum tank volume>= 60 LTank levelTop/MiddleAdult size4.5 cm
Freshwater
Advanced
©AI Generation·ProprietaryOrinoco Cupid Cichlid (Biotodoma wavrini)
Biotodoma wavrini
Water temp25 - 30 °CpH Value4.5 - 6.5 pHGH1 - 8 dGHKH1 - 4 dKHMinimum tank volume>= 180 LTank levelMiddle/BottomAdult size15 cm
Freshwater
Easy
©AI Generation·ProprietaryOrinoco Flag Cichlid (Mesonauta insignis)
Mesonauta insignis
Water temp25 - 30 °CpH Value5.5 - 7 pHGH1 - 8 dGHKH1 - 4 dKHMinimum tank volume>= 180 LTank levelTop/MiddleAdult size15 cm
Freshwater
Advanced
©AI Generation·ProprietaryOrinoco Twig Catfish
Farlowella mariaelenae
Water temp24 - 28 °CpH Value6 - 7.5 pHGH2 - 12 dGHKH1 - 6 dKHMinimum tank volume>= 120 LTank levelMiddle/BottomAdult size15 cm
Freshwater
Advanced
©AI Generated·ProprietaryOrnate Bichir (Polypterus Ornatipinnis)
Polypterus ornatipinnis
Water temp25 - 29 °CpH Value6.5 - 7.5 pHGH5 - 15 dGHKH2 - 7 dKHMinimum tank volume>= 500 LTank levelBottomAdult size60 cm
Freshwater
Easy
©AI Generation·ProprietaryOrnate Corydoras
Corydoras ornatus
Water temp22 - 26 °CpH Value6 - 7.2 pHGH2 - 12 dGHKH2 - 10 dKHMinimum tank volume>= 80 LTank levelBottomAdult size5.5 cm
Freshwater
Intermediate
©AI Generated·ProprietaryOrnate ctenopoma
Microctenopoma ansorgii
Water temp22 - 26 °CpH Value5.5 - 7 pHGH2 - 10 dGHKH1 - 5 dKHMinimum tank volume>= 60 LTank levelMiddle/BottomAdult size8 cm
Freshwater
Expert
©AI Generated·ProprietaryOrnate rainbow goby
Stiphodon ornatus
Water temp22 - 28 °CpH Value6.5 - 7.5 pHGH5 - 15 dGHKH2 - 7 dKHMinimum tank volume>= 60 LTank levelBottomAdult size5 cm
Freshwater
Easy
©AI Generation·ProprietaryOrphnopterus Cory
Corydoras orphnopterus
Water temp22 - 26 °CpH Value6 - 7.2 pHGH2 - 12 dGHKH2 - 10 dKHMinimum tank volume>= 100 LTank levelBottomAdult size6 cm
Freshwater
Easy
©AI Generation·ProprietaryOrtega's Corydoras
Corydoras ortegai
Water temp22 - 26 °CpH Value6 - 7.2 pHGH2 - 12 dGHKH2 - 10 dKHMinimum tank volume>= 80 LTank levelBottomAdult size4.5 cm
Freshwater
Intermediate
©AI Generated·ProprietaryOscar
Astronotus ocellatus
Water temp22 - 28 °CpH Value6 - 7.5 pHGH2 - 15 dGHKH1 - 7 dKHMinimum tank volume>= 300 LTank levelAll levelsAdult size35 cm
Freshwater
Easy
©AI Generation·ProprietaryOsteocarus Cory
Corydoras osteocarus
Water temp22 - 26 °CpH Value6 - 7.2 pHGH2 - 12 dGHKH2 - 10 dKHMinimum tank volume>= 80 LTank levelBottomAdult size4 cm
Freshwater
Expert
©AI Generated·ProprietaryOtocinclus (Dwarf Sucker)
Macrotocinclus affinis
Water temp21 - 26 °CpH Value6 - 7.5 pHGH2 - 15 dGHKH1 - 7 dKHMinimum tank volume>= 30 LTank levelMiddle/BottomAdult size4 cm
Freshwater
Expert
©AI Generation·ProprietaryOtocinclus (Oto Macrospilus)
Otocinclus macrospilus
Water temp21 - 26 °CpH Value5.5 - 7.5 pHGH1 - 12 dGHKH1 - 6 dKHMinimum tank volume>= 30 LTank levelMiddle/BottomAdult size4 cm
Freshwater
Expert
©AI Generated·ProprietaryOtocinclus (Oto Vittatus)
Otocinclus vittatus
Water temp21 - 26 °CpH Value5.5 - 7.5 pHGH1 - 12 dGHKH1 - 6 dKHMinimum tank volume>= 30 LTank levelMiddle/BottomAdult size4 cm
Freshwater
Easy
©AI Generation·ProprietaryOurastigma Cory
Corydoras ourastigma
Water temp22 - 26 °CpH Value6 - 7.2 pHGH2 - 12 dGHKH2 - 10 dKHMinimum tank volume>= 100 LTank levelBottomAdult size6 cm
FreshwaterBrackishMarine
Intermediate
©AI Generated·ProprietaryPacific Blue-eye
Pseudomugil signifer
Water temp15 - 28 °CpH Value6.5 - 8 pHGH5 - 15 dGHKH2 - 7 dKHMinimum tank volume>= 60 LTank levelTop/MiddleAdult size5 cm
FreshwaterBrackish
Advanced
©AI Generated·ProprietaryPacific four-eyed fish
Anableps dowei
Water temp24 - 29 °CpH Value7.5 - 8.5 pHGH4 - 15 dGHKH2 - 7 dKHMinimum tank volume>= 300 LTank levelTopAdult size22 cm
Freshwater
Easy
©AI Generation·ProprietaryPale Cory
Corydoras flaveolus
Water temp22 - 26 °CpH Value6 - 7.2 pHGH2 - 12 dGHKH3 - 10 dKHMinimum tank volume>= 80 LTank levelBottomAdult size5 cm
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