What size tank does a Polka Dot Loach need?

Polka Dot Loach needs a minimum of 40 gallons, with 60 gallons recommended. They are bottom swimmers. Keep in groups of 5+.

Is Polka Dot Loach good for beginners?

Polka Dot Loach is rated "intermediate" difficulty (2/5). Great for beginners.

What fish are compatible with Polka Dot Loach?

Polka Dot Loach is peaceful. Compatible tank mates include other peaceful fish with similar water parameters (pH 6-7, temp 75-82°F).

Polka Dot Loach

Botia kubotai

Family: Botiidae • Origin: Various

Polka Dot Loach (Botia kubotai) is a peaceful loach reaching 6 inches. Keep in groups of 5+. Minimum tank: 40 gallons.

Min Tank

40 gal

Max Size

Temperature

75-82°F

6-7

Lifespan

9 years

School Size

Swim Level

bottom

Hardness

5-15 dGH

peacefulintermediateomnivoreschooling

Is Polka Dot Loach Right for Your Tank?

Polka Dot Loach 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. They need at least 40 gallons — a mid-size tank commitment. Plan your space accordingly.

With a peaceful temperament, Polka Dot Loach makes a great community fish. They coexist well with other non-aggressive species of similar size. This is a schooling species — keep at least 5 together, or they may become stressed and display abnormal behavior. Expected lifespan: 9 years with proper care.

Common Mistakes with Polka Dot Loach

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Keeping fewer than 5 together

Polka Dot Loach is a schooling species — they need a group of at least 5 to feel secure. Lone or paired individuals become stressed, hide constantly, and may develop health issues or aggression.

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Relying on a heater without a thermometer

Polka Dot Loach needs 75–82°F. Heaters malfunction or drift over time — always use a separate thermometer to verify. Temperature swings of even 3–4°F can trigger stress and disease, particularly ich.

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Putting them in a tank under 40 gallons

Many beginners underestimate tank size needs. Polka Dot Loach requires at least 40 gallons — ideally 60. Cramped tanks lead to stunted growth, aggression, and poor water quality.