Beginner – IntermediatePenguin Tetra
Thayeria boehlkei
- Adult size
- up to 6 cm
- Aquarium size
- 80 L or larger
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 22–27 °C
Aquarium Fish Database
Explore freshwater aquarium fish by care level, size, temperament, swimming zone, water parameters, and compatibility.
Beginner – Intermediate
Beginner – IntermediatePentazona Barb
Desmopuntius pentazona
- Adult size
- up to 8.5 cm
- Aquarium size
- 120 L or larger
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 23–28 °C
Beginner – IntermediatePeppered Corydoras
Corydoras paleatus
- Adult size
- up to 6 cm
- Aquarium size
- 80 L or larger
- Temperament
- Peaceful
- Zone
- Bottom to middle swimmer
- Temp
- 17–26 °C
IntermediatePeppermint Armour Goby
Lentipes armatus
- Adult size
- up to 5 cm
- Aquarium size
- 45 L or larger
- Temperament
- Peaceful
- Zone
- Bottom to middle swimmer
- Temp
- 22–26 °C
Beginner – IntermediatePeruvian Tetra
Hyphessobrycon peruvianus
- Adult size
- up to 4 cm
- Aquarium size
- 45 L or larger
- Temperament
- Peaceful
- Zone
- Middle swimmer
- Temp
- 24–26 °C
Beginner – IntermediatePetan Molly
Poecilia kykesis
- Adult size
- up to 13 cm
- Aquarium size
- 160 L or larger
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 24–28 °C
Intermediate – AdvancedPeter’s Elephant Nose Fish
Gnathonemus petersii
- Adult size
- up to 23 cm
- Aquarium size
- 300 L or larger
- Temperament
- Peaceful
- Zone
- Bottom dweller
- Temp
- 23–28 °C
Beginner – IntermediatePeugeot Tetra
Hyphessobrycon peugeoti
- Adult size
- up to 4 cm
- Aquarium size
- 45 L or larger
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 23–27 °C
Beginner – IntermediatePhoenix Rasbora
Boraras merah
- Adult size
- up to 2 cm
- Aquarium size
- 30 L or larger
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 20–27 °C
Beginner – IntermediatePhoenix Tetra
Hemigrammus filamentosus
- Adult size
- up to 4 cm
- Aquarium size
- 45 L or larger
- Temperament
- Peaceful
- Zone
- Middle swimmer
- Temp
- 23–25 °C
IntermediatePicta Swamp Guppy
Micropoecilia picta
- Adult size
- up to 3 cm
- Aquarium size
- 30 L or larger
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 26–27 °C
IntermediatePictus Catfish
Pimelodus pictus
- Adult size
- up to 12 cm
- Aquarium size
- 100 L or larger
- Temperament
- Peaceful
- Zone
- Bottom dweller
- Temp
- 22–26 °C
Beginner – IntermediatePingi Hillstream Loach
Beaufortia pingi
- Adult size
- up to 7 cm
- Aquarium size
- 80 L or larger
- Temperament
- Peaceful
- Zone
- Bottom dweller
- Temp
- 18–24 °C
IntermediatePink Kissing Gourami
Helostoma temminckii
- Adult size
- up to 30 cm
- Aquarium size
- 300 L or larger
- Temperament
- Semi-Aggressive
- Zone
- Middle to top swimmer
- Temp
- 22–28 °C
Beginner – IntermediatePink Lemon Tetra
Hyphessobrycon itaparicensis
- Adult size
- up to 4 cm
- Aquarium size
- 45 L or larger
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 22–27 °C
Intermediate – AdvancedPink Tail Chalceus
Chalceus macrolepidotus
- Adult size
- up to 30 cm
- Aquarium size
- 300 L or larger
- Temperament
- Semi-Aggressive
- Zone
- Middle to top swimmer
- Temp
- 22.8–27.8 °C
Intermediate – AdvancedPlatinum Alligator Gar
Atractosteus spatula
- Adult size
- up to 300 cm
- Aquarium size
- 1650 L or larger
- Temperament
- Aggressive
- Zone
- Middle to top swimmer
- Temp
- 15–31 °C
Beginner – IntermediatePlatinum Medaka Ricefish
Oryzias latipes var Platinum
- Adult size
- up to 4 cm
- Aquarium size
- 45 L or larger
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 18–24 °C
BeginnerPlaty
Xiphophorus maculatus
- Adult size
- up to 7.5 cm
- Aquarium size
- 80 L or larger
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 18–25 °C
Beginner – IntermediatePoliaks Killifish
Aphyosemion poliaki
- Adult size
- up to 6 cm
- Aquarium size
- 80 L or larger
- Temperament
- Peaceful
- Zone
- Middle to top swimmer
- Temp
- 22–26 °C
IntermediatePolka Dot Loach
Botia kubotai
- Adult size
- up to 12 cm
- Aquarium size
- 200 L or larger
- Temperament
- Semi-Aggressive
- Zone
- Bottom to middle swimmer
- Temp
- 23–27 °C
IntermediatePolka Dot Synodontis
Synodontis angelicus
- Adult size
- up to 25 cm
- Aquarium size
- 300 L or larger
- Temperament
- Peaceful
- Zone
- Bottom dweller
- Temp
- 24–28 °C
Beginner – IntermediatePolystictus Corydoras
Corydoras polystictus
- Adult size
- up to 3 cm
- Aquarium size
- 60 L or larger
- Temperament
- Peaceful
- Zone
- Bottom dweller
- Temp
- 22–28 °C
Beginner – IntermediatePopondetta Blue Eye Rainbowfish
Pseudomugil connieae
- Adult size
- up to 5 cm
- Aquarium size
- 45 L or larger
- Temperament
- Peaceful
- Zone
- Middle swimmer
- Temp
- 23–27 °C
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