Overview
The Zebra Danio (Danio rerio) is a beginner freshwater species known for its silver-blue, gold stripes coloration. Very hardy. Top to Mid.
Origin & Appearance
Origin: India.
Colors: Silver-Blue, Gold stripes.
Body Shape: Fusiform (torpedo/streamlined). Typical adult dimensions: 5.0 x 0.9 x 1.5.
Sexual Dimorphism: Subtle; females plumper.
Tank & Water Requirements
| Min Tank Size | 11 gallons |
| Temperature | 64–75°F |
| pH Range | 6–8 |
| Water Hardness (GH) | 5-20 |
| Bioload | low |
| Oxygen Demand | low |
| Plant Safe | yes |
| Aquarium Position | Top to Mid |
Behavior & Activity
Hyperactive top-to-mid swimmer; constant rapid darting and chasing; zig-zags across the tank surface; never sits still
Speed: 55/100Aggression: 2/10diurnalSchooling (6+)
Breeding
Easy; egg scatterer; model organism
Common Diseases
💊 Very hardy💊 mycobacterium in old stock
Expert Notes
Very hardy; model organism in research
Compatible Tank Mates
✓ corydoras catfish✓ cherry barb✓ bristlenose pleco✓ platy✓ mystery snail✓ nerite snail✓ white cloud minnow✓ kuhli loach