What size tank does a Archer Fish need?

Archer Fish needs a minimum of 75 gallons, with 113 gallons recommended. They are top swimmers. Keep in groups of 4+.

Is Archer Fish good for beginners?

Archer Fish is rated "advanced" difficulty (3/5). Suitable for intermediate fishkeepers.

What fish are compatible with Archer Fish?

Archer Fish is semi-aggressive. Compatible tank mates include other semi-aggressive fish with similar water parameters (pH 7-8, temp 77-86°F). Give adequate territory space.

Archer Fish

Toxotes jaculatrix

Family: Toxotidae • Origin: Various

Archer Fish (Toxotes jaculatrix) is a semi-aggressive other reaching 10 inches. Keep in groups of 4+. Minimum tank size: 75 gallons.

Min Tank

75 gal

Max Size

10"

Temperature

77-86°F

7-8

Lifespan

15 years

School Size

Swim Level

top

Hardness

5-15 dGH

semi-aggressiveadvancedcarnivoreschooling

Is Archer Fish Right for Your Tank?

Archer Fish is a moderate-care fish rated "advanced" (3/5). Suitable for hobbyists with some experience who can maintain stable water parameters. They need at least 75 gallons — a mid-size tank commitment. Plan your space accordingly.

Archer Fish is semi-aggressive — they can live with others but may bully smaller or slower fish. Choose tank mates carefully. This is a schooling species — keep at least 4 together, or they may become stressed and display abnormal behavior. They are territorial — provide adequate hiding spots and maintain enough space to reduce aggression. Expected lifespan: 15 years with proper care.

Common Mistakes with Archer Fish

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Keeping fewer than 4 together

Archer Fish 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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Relying on a heater without a thermometer

Archer Fish needs 77–86°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 75 gallons

Many beginners underestimate tank size needs. Archer Fish requires at least 75 gallons — ideally 113. Cramped tanks lead to stunted growth, aggression, and poor water quality.

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Housing with peaceful nano fish

Archer Fish is semi-aggressive and territorial — small, peaceful species like neon tetras, endlers, or celestial pearl danios will be stressed, bullied, or eaten. Choose tank mates that can hold their own.