The Aqua Guide
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Showing 179 species in our database

Swordtail

Swordtail

Xiphophorus hellerii

Water: Freshwater
pH Range: 7.0 - 8.0
Care: Easy
Size: 12.00 cm
Temp: 22.0°C - 28.0°C
Named for long sword-like tail fin.
146 Family : Poeciliidae
Swordtail

Swordtail

Xiphophorus hellerii

Water: Freshwater
pH Range: 7.0 - 8.0
Care: Easy
Size: 12.00 cm
Temp: 22.0°C - 28.0°C
Named for long sword-like tail fin.
131 Family : Poeciliidae
Tiger Barb

Tiger Barb

Barbus tetrazona

Water: Freshwater
pH Range: 6.0 - 8.0
Care: Easy
Size: 7.00 cm
Temp: 22.0°C - 28.0°C
Active, colorful schooling fish with black stripes.
370 Family : Cyprinidae
Tiger Oscar

Tiger Oscar

Astronotus ocellatus

Water: Freshwater
pH Range: 6.0 - 7.5
Care: Moderate
Size: 35.00 cm
Temp: 22.0°C - 28.0°C
Large, intelligent cichlid with bold colors.
82 Family : Cichlidae
Tomato Clownfish

Tomato Clownfish

Amphiprion frenatus

Water: Marine
pH Range: 7.7 - 8.5
Care: Moderate
Size: 14.00 cm
Temp: 23.0°C - 27.0°C
The Tomato Clownfish is a vibrant, hardy marine species known for its bright red-orange coloration with a single white vertical bar behind the eye. Ju...
88 Family : Pomacentridae
White Cloud Mountain Minnow

White Cloud Mountain Minnow

Tanichthys albonubes

Water: Freshwater
pH Range: 6.0 - 7.5
Care: Very Easy
Size: 4.00 cm
Temp: 16.0°C - 22.0°C
Small, hardy, peaceful schooling fish.
170 Family : Cyprinidae
White Cloud Mountain Minnow

White Cloud Mountain Minnow

Tanichthys albonubes

Water: Freshwater
pH Range: 6.0 - 7.5
Care: Very Easy
Size: 4.00 cm
Temp: 16.0°C - 22.0°C
Small, peaceful schooling fish tolerant of cool water.
170 Family : Cyprinidae
Yellow Boxfish

Yellow Boxfish

Ostracion cubicum

Water: Marine
pH Range: 8.0 - 8.4
Care: Moderate
Size: 45.00 cm
Temp: 24.0°C - 28.0°C
Box-shaped reef fish with bright yellow coloration.
88 Family : Ostraciidae
Yellow Tang

Yellow Tang

Zebrasoma flavescens

Water: Marine
pH Range: 8.0 - 8.4
Care: Moderate
Size: 20.00 cm
Temp: 24.0°C - 28.0°C
Bright yellow reef fish popular in marine tanks.
534 Family : Acanthuridae
Yellow Tang

Yellow Tang

Zebrasoma flavescens

Water: Marine
pH Range: 8.0 - 8.4
Care: Moderate
Size: 20.00 cm
Temp: 24.0°C - 28.0°C
Bright yellow surgeonfish.
69 Family : Acanthuridae
Yellow Tang

Yellow Tang

Zebrasoma flavescens

Water: Marine
pH Range: 8.0 - 8.4
Care: Moderate
Size: 20.00 cm
Temp: 24.0°C - 28.0°C
Bright yellow surgeonfish popular with aquarists.
82 Family : Acanthuridae
Yellow Watchman Goby

Yellow Watchman Goby

Cryptocentrus cinctus

Water: Marine
pH Range: 8.0 - 8.4
Care: Easy
Size: 10.00 cm
Temp: 24.0°C - 28.0°C
Bright yellow goby, often symbiotic with pistol shrimp.
90 Family : Gobiidae
Yellowtail Blue Damselfish

Yellowtail Blue Damselfish

Chrysiptera parasema

Water: Marine
pH Range: 8.0 - 8.4
Care: Easy
Size: 8.00 cm
Temp: 24.0°C - 28.0°C
Small, colorful reef fish with blue body and yellow tail.
92 Family : Pomacentridae
Yellowtail Damselfish

Yellowtail Damselfish

Chrysiptera parasema

Water: Marine
pH Range: 8.0 - 8.4
Care: Easy
Size: 8.00 cm
Temp: 24.0°C - 28.0°C
Bright blue damselfish with yellow tail.
100 Family : Pomacentridae
Yellowtail Tang

Yellowtail Tang

Zebrasoma xanthurum

Water: Marine
pH Range: 8.0 - 8.4
Care: Difficult
Size: 25.00 cm
Temp: 24.0°C - 28.0°C
Striking sailfin tang with yellow tail.
87 Family : Acanthuridae
Yoyo Loach

Yoyo Loach

Botia almorhae

Water: Freshwater
pH Range: 6.5 - 7.5
Care: Easy
Size: 12.00 cm
Temp: 22.0°C - 26.0°C
Active, patterned bottom-dweller.
99 Family : Cobitidae
Yoyo Loach

Yoyo Loach

Botia almorhae

Water: Freshwater
pH Range: 6.5 - 7.5
Care: Easy
Size: 12.00 cm
Temp: 22.0°C - 26.0°C
Active, patterned bottom-dweller.
76 Family : Cobitidae
Zebra Danio

Zebra Danio

Brachydanio rerio

Water: Freshwater
pH Range: 6.5 - 7.5
Care: Very Easy
Size: 6.00 cm
Temp: 18.0°C - 24.0°C
Small, fast, and easy to keep.
230 Family : Cyprinidae
Zebra Loach

Zebra Loach

Botia striata

Water: Freshwater
pH Range: 6.5 - 7.5
Care: Easy
Size: 12.00 cm
Temp: 22.0°C - 26.0°C
Small tiger-striped loach.
111 Family : Cobitidae