What size tank does a Peacock Gudgeon need?

Peacock Gudgeon needs a minimum of 10 gallons, with 15 gallons recommended. They are bottom swimmers. Keep in groups of 4+.

Is Peacock Gudgeon good for beginners?

Peacock Gudgeon is rated "intermediate" difficulty (2/5). Great for beginners.

What fish are compatible with Peacock Gudgeon?

Peacock Gudgeon is peaceful. Compatible tank mates include other peaceful fish with similar water parameters (pH 6.5-7.5, temp 72-79°F).

Peacock Gudgeon

Tateurndina ocellicauda

Family: Eleotridae • Origin: Various

Peacock Gudgeon (Tateurndina ocellicauda) is a peaceful other reaching 3 inches. Keep in groups of 4+. Minimum tank: 10 gallons.

Min Tank

10 gal

Max Size

Temperature

72-79°F

6.5-7.5

Lifespan

4 years

School Size

Swim Level

bottom

Hardness

5-15 dGH

peacefulintermediateomnivoreschooling

Is Peacock Gudgeon Right for Your Tank?

Peacock Gudgeon is an excellent choice for beginners — rated "intermediate" difficulty (2/5). 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, Peacock Gudgeon makes a great community fish. They coexist well with other non-aggressive species of similar size. This is a schooling species — keep at least 4 together, or they may become stressed and display abnormal behavior. Expected lifespan: 4 years with proper care.

Common Mistakes with Peacock Gudgeon

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Keeping fewer than 4 together

Peacock Gudgeon is a schooling species — they need a group of at least 4 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 (15 gal) is much more forgiving.