Freshwater
Intermediate
©AI Generated·ProprietaryGünther's notho (blue form)
Nothobranchius guentheri 'blau'
Water temp0 - 30 °CpH Value6.5 - 7 pHGH0 - 30 dGHKH1 - 15 dKHMinimum tank volume>= 20 LTank levelMiddle/BottomAdult size3.5 cm
Encyclopaedia
Freshwater fish
Freshwater species for community aquariums, river biotopes, and planted tanks.
Copy the link or share this page so you can easily find it again.
Explore by category
Visual guideFilter918 cards / 1664
Family
Origin
Tank level
Sociality
Adult size
Freshwater
Intermediate
©AI Generated·ProprietaryGuppy
Poecilia reticulata
Water temp22 - 28 °CpH Value7 - 8.5 pHGH10 - 30 dGHKH3 - 10 dKHMinimum tank volume>= 40 LTank levelTop/MiddleAdult size6 cm
Freshwater
Easy
©AI Generation·ProprietaryHalf-banded Pyrrhulina
Pyrrhulina laeta
Water temp24 - 28 °CpH Value5.5 - 7.2 pHGH1 - 10 dGHKH2 - 10 dKHMinimum tank volume>= 80 LTank levelTopAdult size7 cm
Freshwater
Intermediate
©AI Generated·ProprietaryHalfmoon Betta
Betta splendens var. Halfmoon
Water temp24 - 29 °CpH Value6 - 7.5 pHGH4 - 15 dGHKH2 - 7 dKHMinimum tank volume>= 20 LTank levelTop/MiddleAdult size7 cm
Freshwater
Easy
©AI Generation·ProprietaryHancock's Talking Catfish
Platydoras hancockii
Water temp23 - 28 °CpH Value6 - 7.5 pHGH2 - 15 dGHKH1 - 10 dKHMinimum tank volume>= 100 LTank levelBottomAdult size15 cm
Freshwater
Easy
©AI Generated·ProprietaryHarlequin Rasbora
Trigonostigma heteromorpha
Water temp22 - 28 °CpH Value5 - 7.5 pHGH1 - 12 dGHKH1 - 8 dKHMinimum tank volume>= 54 LTank levelMiddleAdult size5 cm
Freshwater
Intermediate
©AI Generated·ProprietaryHarrison's Pencilfish
Nannostomus harrisoni
Water temp24 - 28 °CpH Value5.5 - 7 pHGH1 - 10 dGHKH1 - 5 dKHMinimum tank volume>= 60 LTank levelTop/MiddleAdult size6 cm
Freshwater
Easy
©AI Generated·ProprietaryHead-and-tail Light Tetra
Hemigrammus ocellifer
Water temp22 - 28 °CpH Value6 - 7.5 pHGH5 - 15 dGHKH2 - 8 dKHMinimum tank volume>= 60 LTank levelMiddle/BottomAdult size4.5 cm
Freshwater
Intermediate
©AI Generated·ProprietaryHexastichos tetra
Hyphessobrycon hexastichos
Water temp24 - 28 °CpH Value6 - 7.5 pHGH2 - 12 dGHKH1 - 6 dKHMinimum tank volume>= 80 LTank levelMiddle/BottomAdult size5 cm
Freshwater
Expert
©AI Generation·ProprietaryHi-Fin Green Phantom Pleco (L200)
Baryancistrus demantoides
Water temp25 - 30 °CpH Value6 - 7.5 pHGH2 - 15 dGHKH1 - 7 dKHMinimum tank volume>= 180 LTank levelBottomAdult size20 cm
Freshwater
Intermediate
©AI Generation·ProprietaryHighfin Barb
Oreichthys crenuchoides
Water temp22 - 27 °CpH Value6 - 7.5 pHGH2 - 12 dGHKH1 - 6 dKHMinimum tank volume>= 60 LTank levelMiddle/BottomAdult size4.5 cm
Freshwater
Easy
©AI Generation·ProprietaryHog-nosed Brochis
Brochis multiradiatus
Water temp22 - 26 °CpH Value6 - 7.2 pHGH2 - 15 dGHKH3 - 10 dKHMinimum tank volume>= 250 LTank levelBottomAdult size10 cm
Freshwater
Easy
©AI Generated·ProprietaryHoney Gourami
Trichogaster chuna
Water temp22 - 27 °CpH Value6 - 7.5 pHGH4 - 15 dGHKH2 - 7 dKHMinimum tank volume>= 60 LTank levelTop/MiddleAdult size5 cm
Freshwater
Intermediate
©AI Generation·ProprietaryHongi Cichlid (Kimpuma)
Labidochromis sp. "Hongi"
Water temp23 - 28 °CpH Value7.5 - 8.5 pHGH10 - 25 dGHKH5 - 12 dKHMinimum tank volume>= 100 LTank levelMiddle/BottomAdult size11 cm
Freshwater
Intermediate
©AI Generated·ProprietaryHongslo's Dwarf Cichlid
Apistogramma hongsloi
Water temp23 - 28 °CpH Value5 - 7 pHGH1 - 10 dGHKH1 - 5 dKHMinimum tank volume>= 100 LTank levelMiddle/BottomAdult size7 cm
Freshwater
Easy
©AI Generation·ProprietaryHoplo Catfish
Megalechis thoracata
Water temp20 - 28 °CpH Value5.5 - 7.5 pHGH2 - 20 dGHKH2 - 10 dKHMinimum tank volume>= 150 LTank levelBottomAdult size15 cm
Freshwater
Easy
©AI Generated·ProprietaryHoppe's otocinclus
Otocinclus hoppei
Water temp21 - 26 °CpH Value6 - 7.5 pHGH2 - 15 dGHKH0 - 12 dKHMinimum tank volume>= 40 LTank levelMiddle/BottomAdult size4 cm
Freshwater
Intermediate
©AI Generated·ProprietaryHorseface Loach
Acantopsis dialuzona
Water temp25 - 28 °CpH Value6 - 7.5 pHGH2 - 12 dGHKH1 - 6 dKHMinimum tank volume>= 180 LTank levelBottomAdult size20 cm
Freshwater
Intermediate
©AI Generated·ProprietaryHovering zebra loach
Yunnanilus cruciatus
Water temp21 - 26 °CpH Value6 - 7.5 pHGH7 - 14 dGHKH3 - 7 dKHMinimum tank volume>= 40 LTank levelMiddleAdult size3.4 cm
Freshwater
Intermediate
©AI Generated·ProprietaryHuascar Dwarf Cichlid
Apistogramma huascar
Water temp23 - 28 °CpH Value5 - 6.8 pHGH1 - 6 dGHKH0.5 - 3 dKHMinimum tank volume>= 60 LTank levelBottomAdult size7 cm
Freshwater
Intermediate
©AI Generated·ProprietaryHujeta Gar / Freshwater Barracuda
Ctenolucius hujeta
Water temp22 - 28 °CpH Value6.5 - 7.5 pHGH4 - 15 dGHKH2 - 7 dKHMinimum tank volume>= 300 LTank levelTopAdult size25 cm
Freshwater
Expert
©AI Generated·ProprietaryHumpbacked Glass Tetra
Roeboides descalvadensis
Water temp22 - 28 °CpH Value6 - 7.5 pHGH2 - 15 dGHKH1 - 7 dKHMinimum tank volume>= 100 LTank levelMiddleAdult size10 cm
Freshwater
Intermediate
©AI Generated·ProprietaryHumphead glassfish
Parambassis pulcinella
Water temp0 - 27 °CpH Value6.5 - 7.5 pHGH0 - 27 dGHKH1 - 13 dKHMinimum tank volume>= 80 LTank levelMiddleAdult size8 cm
Freshwater
Intermediate
©AI Generation·ProprietaryHypancistrus sp. L450
Hypancistrus sp. L450
Water temp27 - 31 °CpH Value5.5 - 7 pHGH1 - 12 dGHKH1 - 6 dKHMinimum tank volume>= 100 LTank levelBottomAdult size12 cm
Showing 24 of 918
Practice with the Atlas
Turn this list into a challenge.
After browsing the species, try recognizing them from photos, names, and traits: leaderboards stay separate from the catalog.