Pearl Danio
Danio albolineatus
Minimum Tank
20 Gallons
Adult Size
2.5 inches
Temperature
64-77°F (18-25°C)
pH Range
6.0-8.0
Lifespan
5 years
School Size
6+ fish
About Pearl Danio
The pearl danio is an attractive, iridescent fish from the cool mountain streams of Myanmar, Sumatra, and surrounding regions of Southeast Asia. Its body displays a beautiful pearlescent sheen with subtle blue and gold tones, complemented by a vivid orange-red stripe running from the midsection to the tail. Pearl danios are active, graceful swimmers that occupy the upper and mid-water levels with quick, darting movements. They are less commonly kept than zebra danios but offer a more subtle, elegant appearance. Pearl danios naturally inhabit clear, cool, flowing waters and prefer similar conditions in the aquarium. Their iridescent beauty is best appreciated under proper lighting.
Care Requirements
Tank Setup
- • Minimum 20-gallon tank required
- • Temperature: 64-77°F (18-25°C)
- • pH: 6.0 - 8.0
- • Category: Danio
Diet & Feeding
- • Diet type: Omnivore
- • Feed 1-2 times daily
- • Varied diet recommended
Tank Mate Compatibility
Compatible With
Avoid Keeping With
Care Tips
Expert Tips
Pearl danios prefer cool to moderate temperatures at 64-75°F, making them suitable for unheated tanks in most homes. Keep them in schools of at least six in a tank of 20 gallons or more with moderate current and good oxygenation. They are active swimmers that need ample horizontal space. Provide a mix of open swimming areas and planted sections. Feed quality flakes, micro-pellets, and frozen foods. Pearl danios are peaceful and mix well with other cool-water species like white cloud mountain minnows and corydoras. They are hardy and adaptable, though they may struggle in very warm tropical setups above 80°F. A secure lid prevents jumping.
Quick Facts
76L
Min Tank (20gal)
6cm
Adult Size (2.5")
5yr
Lifespan
6+
Min School
Build Your Perfect Community Tank
Find compatible tankmates for your Pearl Danio
Related Species You Might Like
Zebra Danio
Danio rerio
White Cloud Mountain Minnow
Tanichthys albonubes
Leopard Danio
Danio rerio var.
Giant Danio
Devario aequipinnatus
Longfin Zebra Danio
Danio rerio var.
Gold Ring Danio
Brachydanio tinwini
Tank Mates for Pearl Danio
Species from our database with overlapping water parameters, compatible temperaments and a realistic shared tank size.
Gold Barb
Barbodes semifasciolatus
easy · 20+ gal
Rosy Barb
Pethia conchonius
easy · 30+ gal
Bronze Corydoras
Corydoras aeneus
easy · 15+ gal
Peppered Corydoras
Corydoras paleatus
easy · 15+ gal
Similar Care Level
Other easy-care species that suit a comparable setup.
Frequently Asked Questions
What size tank does a Pearl Danio need?
A Pearl Danio needs a minimum tank size of 20 gallons (76 litres). They should be kept in schools of at least 6.
What water parameters does a Pearl Danio need?
Pearl Danio thrive in water between 64-77°F (18-25°C) with a pH of 6.0-8.0.
Are Pearl Danio easy to care for?
Pearl Danio are considered easy to care for. They are peaceful fish with a lifespan of about 5 years.
How big do Pearl Danio get and what do they eat?
Pearl Danio reach about 2.5 inches and are omnivores. Pearl danios prefer cool to moderate temperatures at 64-75°F, making them suitable for unheated tanks in most homes. Keep them in schools of at least six in a tank of 20 gallons or more with moderate current and good oxygenation. They are active swimmers that need ample horizontal space. Provide a mix of open swimming areas and planted sections. Feed quality flakes, micro-pellets, and frozen foods. Pearl danios are peaceful and mix well with other cool-water species like white cloud mountain minnows and corydoras. They are hardy and adaptable, though they may struggle in very warm tropical setups above 80°F. A secure lid prevents jumping.