What size tank does a Filament Barb need?

Filament Barb needs a minimum of 40 gallons, with 60 gallons recommended. They are middle swimmers. Keep in groups of 6+.

Is Filament Barb good for beginners?

Filament Barb is rated "intermediate" difficulty (2/5). Great for beginners.

What fish are compatible with Filament Barb?

Filament Barb is peaceful. Compatible tank mates include other peaceful fish with similar water parameters (pH 6-7, temp 72-79°F).

Filament Barb

Dawkinsia filamentosa

Family: Cyprinidae • Origin: Various

Filament Barb (Dawkinsia filamentosa) is a peaceful barb reaching 6 inches. Keep in groups of 6+. Minimum tank: 40 gallons.

Min Tank

40 gal

Max Size

Temperature

72-79°F

6-7

Lifespan

9 years

School Size

Swim Level

middle

Hardness

5-15 dGH

peacefulintermediateomnivoreschooling

Is Filament Barb Right for Your Tank?

Filament Barb 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, Filament Barb 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: 9 years with proper care.

Common Mistakes with Filament Barb

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Keeping fewer than 6 together

Filament Barb 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 40 gallons

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