What size tank does a Severum need?

Severum needs a minimum of 40 gallons, with 60 gallons recommended. They are middle swimmers.

Is Severum good for beginners?

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

What fish are compatible with Severum?

Severum is semi-aggressive. Compatible tank mates include other semi-aggressive fish with similar water parameters (pH 6-7.5, temp 75-82°F). Give adequate territory space.

Severum

Heros efasciatus

Family: Cichlidae • Origin: Various

Severum (Heros efasciatus) is a semi-aggressive cichlid reaching 8 inches. Can be kept singly. Minimum tank size: 40 gallons.

Min Tank

40 gal

Max Size

Temperature

75-82°F

6-7.5

Lifespan

12 years

School Size

Solo OK

Swim Level

middle

Hardness

5-15 dGH

semi-aggressiveintermediateomnivore

Is Severum Right for Your Tank?

Severum 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.

Severum is semi-aggressive — they can live with others but may bully smaller or slower fish. Choose tank mates carefully. They are territorial — provide adequate hiding spots and maintain enough space to reduce aggression. Expected lifespan: 12 years with proper care.

Common Mistakes with Severum

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Relying on a heater without a thermometer

Severum 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. Severum requires at least 40 gallons — ideally 60. Cramped tanks lead to stunted growth, aggression, and poor water quality.

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Housing with peaceful nano fish

Severum 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.