THE FRESHWATER FIELD GUIDE
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Search the full catalog of fish, plants, and invertebrates.
474 species found
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Fish · beginner
Ulrey's tetra
Hemigrammus ulreyi
- Size
- 6.00 cm
- Temp
- 23.0–27.0°C
- pH
- 5.0–7.5
- From
- Brazil
Fish · beginner
Umbrella apistogramma
Apistogramma borellii
- Size
- 20.00 cm
- Temp
- 12.0–28.0°C
- pH
- 5.0–8.0
- From
- Rio Paraguay system
Fish · intermediate
Upside-down catfish
Synodontis nigriventris
- Size
- 10.16 cm
- Temp
- 23.0–27.0°C
- pH
- 6.5–7.8
- From
- Congo Basin
Fish · beginner
Variable platy
Xiphophorus variatus
- Size
- 7.00 cm
- Temp
- 20.0–28.0°C
- pH
- 6.8–8.5
- From
- Mexico and Central America
Fish · beginner
Venezuelan corydoras
Corydoras venezuelanus
- Size
- 6.35 cm
- Temp
- 19.0–26.1°C
- pH
- 6.0–8.5
- From
- Venezuela
Fish · intermediate
Venustus cichlid
Nimbochromis venustus
- Size
- 20.00 cm
- Temp
- 24.0–28.0°C
- pH
- 7.5–8.5
- From
- Lake Tanganyika
Fish · intermediate
Viejita apistogramma
Apistogramma viejita
- Size
- 10.00 cm
- Temp
- 24.0–28.0°C
- pH
- 5.5–7.0
- From
- Amazon Basin
Fish · intermediate
Waser's betta
Betta waseri
- Size
- 9.80 cm
- Temp
- 22.0–28.0°C
- pH
- 6.0–8.0
- From
- Southeast Asia
Fish · beginner
Whiptail catfish
Rineloricaria fallax
- Size
- 15.00 cm
- Temp
- 22.0–29.0°C
- pH
- 6.0–7.5
- From
- Amazon Basin
Fish
White Cloud Mountain minnow
Tanichthys albonubes
Fish · intermediate
White-edged betta
Betta albimarginata
- Size
- 7.00 cm
- Temp
- 23.0–28.0°C
- pH
- 4.0–8.0
- From
- Southeast Asia
Fish · intermediate
Wine-red betta
Betta coccina
- Size
- 6.50 cm
- Temp
- 22.0–30.0°C
- pH
- 3.5–8.0
- From
- Southeast Asia
Fish · intermediate
Wrestling halfbeak
Dermogenys pusilla
- Size
- 7.50 cm
- Temp
- 22.0–28.0°C
- pH
- 6.0–8.0
- From
- Southeast Asia
Fish · beginner
X-ray tetra
Pristella maxillaris
- Size
- 5.08 cm
- Temp
- 17.8–28.0°C
- pH
- 5.8–8.5
- From
- Coastal rivers
Fish · intermediate
Yoyo loach
Botia almorhae
- Size
- 18.00 cm
- Temp
- 24.0–30.0°C
- pH
- 6.5–7.5
- From
- South Asia
Fish · beginner
Zebra danio
Danio rerio
- Size
- 7.00 cm
- Temp
- 18.0–28.0°C
- pH
- 6.5–8.0
- From
- South Asia
Fish
Zebra loach
Botia striata
- Size
- 9.50 cm
- Temp
- 23.0–26.0°C
- pH
- 6.0–8.0
- From
- N/A
Fish · beginner
Zebra mbuna
Maylandia zebra
- Size
- 15.24 cm
- Temp
- 24.0–28.0°C
- pH
- 7.8–8.6
- From
- Lake Malawi
Fish · beginner
Zebra pleco
Hypancistrus zebra
- Size
- 10.00 cm
- Temp
- 24.0–31.0°C
- pH
- 6.4–7.5
- From
- Amazon Basin
Invert · beginner
Amano shrimp
Caridina multidentata
- Size
- 6.50 cm
- Temp
- 17.8–26.6°C
- pH
- 6.5–8.2
- From
- East Asia
Invert · intermediate
Amazon zebra shrimp
Euryrhynchus amazoniensis
- Size
- 8.00 cm
- Temp
- 22.2–28.0°C
- pH
- 4.3–7.5
- From
- Amazon Basin
Invert · beginner
Assassin snail
Anentome helena
- Size
- 5.00 cm
- Temp
- 22.2–28.0°C
- pH
- 6.7–8.5
- From
- Southeast Asia
Invert · beginner
Australian Amano shrimp
Caridina typus
- Size
- 7.80 cm
- Temp
- 15.0–28.0°C
- pH
- 6.0–8.0
- From
- Southeast Australia
Invert · intermediate
Australian red claw crayfish
Cherax quadricarinatus
- Size
- 30.00 cm
- Temp
- 18.0–31.0°C
- pH
- 6.5–8.5
- From
- Northern Australia and Papua New Guinea