THE FRESHWATER FIELD GUIDE
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Search the full catalog of fish, plants, and invertebrates.
331 species found
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Fish · intermediate
Noble gourami
Ctenops nobilis
- Size
- 15.00 cm
- Temp
- 15.0–32.2°C
- pH
- 4.0–7.5
- From
- South Asia
Fish · beginner
Ocellated betta
Betta ocellata
- Size
- 11.00 cm
- Temp
- 23.0–27.0°C
- pH
- 6.3–8.0
- From
- South Asia
Fish · beginner
Odessa barb
Pethia padamya
- Size
- 7.62 cm
- Temp
- 15.0–26.0°C
- pH
- 6.0–8.0
- From
- Southeast Asia
Fish · beginner
One-lined pencilfish
Nannostomus unifasciatus
- Size
- 6.00 cm
- Temp
- 22.0–28.0°C
- pH
- 4.0–7.5
- From
- Amazon Basin
Fish · intermediate
Orange-finned danio
Danio kyathit
- Size
- 5.50 cm
- Temp
- 18.0–27.0°C
- pH
- 5.5–7.5
- From
- Sri Lanka
Fish · intermediate
Ornate bichir
Polypterus ornatipinnis
- Size
- 66.00 cm
- Temp
- 24.0–28.0°C
- pH
- 6.0–8.0
- From
- Central and East Africa
Fish · intermediate
Ornate ctenopoma
Microctenopoma ansorgii
- Size
- 20.00 cm
- Temp
- 20.0–28.0°C
- pH
- 5.5–7.5
- From
- Central Africa
Fish · intermediate
Oscar
Astronotus ocellatus
- Size
- 45.00 cm
- Temp
- 22.0–30.0°C
- pH
- 6.0–8.0
- From
- Amazon basin
Fish · beginner
Otocinclus
Otocinclus vittatus
- Size
- 5.00 cm
- Temp
- 21.0–28.0°C
- pH
- 6.0–7.5
- From
- Amazon Basin
Fish · intermediate
Pacific blue-eye
Pseudomugil signifer
- Size
- 8.80 cm
- Temp
- 15.0–28.0°C
- pH
- 6.5–8.0
- From
- Eastern Australia
Fish · beginner
Panda corydoras
Corydoras panda
- Size
- 7.62 cm
- Temp
- 18.3–26.6°C
- pH
- 6.0–8.5
- From
- Amazon Basin
Fish · intermediate
Panda dwarf cichlid
Apistogramma nijsseni
- Size
- 8.00 cm
- Temp
- 23.0–29.0°C
- pH
- 5.0–7.0
- From
- Amazon Basin
Fish · intermediate
Panduro apistogramma
Apistogramma panduro
- Size
- 8.00 cm
- Temp
- 22.0–28.0°C
- pH
- 4.0–7.0
- From
- Amazon
Fish · intermediate
Paradise fish
Macropodus opercularis
- Size
- 10.00 cm
- Temp
- 20.0–28.0°C
- pH
- 6.0–8.0
- From
- East and Southeast Asia
Fish · beginner
Paskai's blue-eye
Pseudomugil paskai
- Size
- 4.00 cm
- Temp
- 24.0–28.0°C
- pH
- 6.5–7.0
- From
- Australia, Papua New Guinea
Fish · intermediate
Peaceful betta
Betta imbellis
- Size
- 7.00 cm
- Temp
- 24.0–30.0°C
- pH
- 6.0–8.0
- From
- Southeast Asia
Fish · intermediate
Peacock cichlid
Aulonocara nyassae
- Size
- 20.00 cm
- Temp
- 22.2–28.0°C
- pH
- 7.0–8.6
- From
- Lake Malawi
Fish · beginner
Peacock gudgeon
Tateurndina ocellicauda
- Size
- 7.62 cm
- Temp
- 22.2–27.8°C
- pH
- 6.0–7.8
- From
- Papua New Guinea
Fish · beginner
Pea puffer
Carinotetraodon travancoricus
- Size
- 3.00 cm
- Temp
- 22.2–28.0°C
- pH
- 6.8–8.3
- From
- Southwestern India
Fish · intermediate
Pearl cichlid
Geophagus brasiliensis
- Size
- 30.50 cm
- Temp
- 22.0–28.0°C
- pH
- 6.0–8.0
- From
- Amazon
Fish · beginner
Pearl danio
Danio albolineatus
- Size
- 6.40 cm
- Temp
- 20.0–25.6°C
- pH
- 6.0–8.0
- From
- Southeast Asia
Fish · beginner
Pearl gourami
Trichopodus leerii
- Size
- 13.00 cm
- Temp
- 23.0–30.0°C
- pH
- 4.0–8.0
- From
- Southeast Asia
Fish · intermediate
Penang betta
Betta pugnax
- Size
- 7.62 cm
- Temp
- 22.0–27.0°C
- pH
- 6.0–8.0
- From
- Southeast Asia
Fish · intermediate
Penguin tetra
Thayeria boehlkei
- Size
- 7.62 cm
- Temp
- 22.0–28.0°C
- pH
- 6.0–7.5
- From
- Amazon Basin