What size tank does a Tropheus Moorii need?

Tropheus Moorii needs a minimum of 20 gallons, with 30 gallons recommended. They are middle swimmers. Keep in groups of 12+.

Is Tropheus Moorii good for beginners?

Tropheus Moorii is rated "expert" difficulty (4/5). Best for experienced aquarists.

What fish are compatible with Tropheus Moorii?

Tropheus Moorii is aggressive. Compatible tank mates include other aggressive fish with similar water parameters (pH 8-9, temp 77-82°F). Give adequate territory space.

Tropheus Moorii

Tropheus moorii

Family: Cichlidae • Origin: Various

Tropheus Moorii (Tropheus moorii) is a aggressive cichlid reaching 5 inches. Keep in groups of 12+. Minimum tank size: 20 gallons.

Min Tank

20 gal

Max Size

Temperature

77-82°F

8-9

Lifespan

8 years

School Size

12+

Swim Level

middle

Hardness

5-15 dGH

aggressiveexpertherbivoreschooling

Is Tropheus Moorii Right for Your Tank?

Tropheus Moorii is rated "expert" (4/5) — best for experienced aquarists. They have specific requirements that make them challenging for beginners. A 20-gallon tank minimum is standard — most community setups will accommodate them.

Tropheus Moorii is aggressive and best kept alone or with other robust species that can hold their own. Not suitable for peaceful community tanks. This is a schooling species — keep at least 12 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: 8 years with proper care.

Common Mistakes with Tropheus Moorii

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Keeping fewer than 12 together

Tropheus Moorii is a schooling species — they need a group of at least 12 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

Tropheus Moorii needs 77–82°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 20 gallons

Many beginners underestimate tank size needs. Tropheus Moorii requires at least 20 gallons — ideally 30. Cramped tanks lead to stunted growth, aggression, and poor water quality.

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Housing with peaceful nano fish

Tropheus Moorii is 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.