What size tank does a Zebra Danio need?

Zebra Danio needs a minimum of 10 gallons, with 20 gallons recommended. They are top swimmers. Keep in groups of 6+.

Is Zebra Danio good for beginners?

Zebra Danio is rated "beginner" difficulty (1/5). Great for beginners.

What fish are compatible with Zebra Danio?

Zebra Danio is peaceful. Compatible tank mates include other peaceful fish with similar water parameters (pH 6.5-7.5, temp 64-77°F).

Zebra Danio

Danio rerio

Family: Cyprinidae • Origin: South Asia

Zebra Danios are among the hardiest aquarium fish. They tolerate cool water, eat anything, and are nearly indestructible. Great cycling fish.

Min Tank

10 gal

Max Size

2.5"

Temperature

64-77°F

6.5-7.5

Lifespan

5 years

School Size

Swim Level

top

Hardness

5-15 dGH

peacefulbeginneromnivoreschooling

Is Zebra Danio Right for Your Tank?

Zebra Danio is an excellent choice for beginners — rated "beginner" difficulty (1/5). They're hardy, forgiving of minor water parameter fluctuations, and generally easy to feed. At just 10 gallons minimum, they work well in nano tanks and smaller setups.

With a peaceful temperament, Zebra Danio makes a great community fish. They coexist well with other non-aggressive species of similar size. This is a schooling species — keep at least 6 together, or they may become stressed and display abnormal behavior. Expected lifespan: 5 years with proper care.

Common Mistakes with Zebra Danio

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Keeping fewer than 6 together

Zebra Danio is a schooling species — they need a group of at least 6 to feel secure. Lone or paired individuals become stressed, hide constantly, and may develop health issues or aggression.

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Putting them in a tank under 10 gallons

While 10 gallons is the minimum, nano tanks require more frequent water changes and leave less room for error. A slightly larger tank (20 gal) is much more forgiving.