Moderate

Firemouth Cichlid

By The Aquarium Calculators Editorial Team ·

Thorichthys meeki

Complete Firemouth Cichlid care guide covering omnivore diet requirements, semi-aggressive temperament, minimum 30 Gallons tank setup, and compatible freshwater tankmates. Difficulty: Moderate.

Firemouth Cichlid

Quick Answer

Firemouth Cichlid (Thorichthys meeki) is a captivating and highly sought-after freshwater species. It requires a minimum 30 Gallons aquarium with a pH of 6.5 - 7.5 and temperature range of 22-26°C. As a omnivore with semi-aggressive tendencies, careful tankmate selection is essential.

Intro

Firemouth Cichlid (Thorichthys meeki) is a captivating and highly sought-after freshwater species. Known for their semi-aggressive nature and distinct appearance, they occupy the middle levels of the aquarium and bring dynamic energy to any setup.

Setup

Firemouth Cichlid requires a stable, well-filtered aquarium of at least 30 gallons. They thrive best with moderate water movement and a reliable heater to maintain temperatures around 22-26°C. Ensure pH levels remain consistent between 6.5 - 7.5 to prevent stress and support long-term health.

Feeding

As a omnivore, the Firemouth Cichlid is not a picky eater. They should be fed a high-quality base of flakes, sinking pellets, or wafers. Periodic supplementation with frozen or live foods, such as bloodworms or brine shrimp, will boost their health and colors.

Compatibility

Firemouth Cichlid has a semi-aggressive temperament. They are compatible with other fish of similar sizes and temperaments. Avoid placing them with aggressive species or tankmates they are listed as incompatible with, such as: african cichlid, oscar.

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Tank Position
Middle
Water Temp
22-26°C
Adult Size
See profile
Water pH
6.5 - 7.5

Species Characteristics

Adult Size
Lifespan
Growth Rate
moderate
Tank Compatibility
Community compatible
Indoor Aquarium
Yes

Water Parameters

Water Temperature
Humidity
Water pH

Tank Lighting

Tank Lighting
Standard lighting
Light Hours
N/A
Intensity
moderate

Feeding & Diet

Diet Type
Diet: Omnivore
Feeding Schedule
N/A
Live Food Options
N/A

Continue Learning

Recommended Tools

Fish Compatibility Calculator fish compatibility

Health & Disease

Ich (White Spot Disease) common disease • all fish

Related Guides

Understanding pH in Aquariums water parameters • ph

Similar Species

African Leaf Fish Care Guide: Diet & Tank Mates semanticSimilarity Angelfish Care Guide: Tank Size & Diet | The Aquarium Calculators semanticSimilarity Badis Care Guide: Tank Size & Compatibility semanticSimilarity

Frequently Asked Questions

How many Firemouth Cichlids should be kept together?
Keep as a single individual or a verified mated pair in a tank of at least 30 gallons (113 liters) with a footprint of 36x12 inches (90x30 cm). Firemouth cichlids (Thorichthys meeki) are territorial but use throat-flaring displays to establish boundaries; two males in under 55 gallons (208 liters) will fight, causing torn fins and lip damage. For a single male, 30 gallons is adequate. Provide at least 3 flat stones, clay pots, and driftwood caves. In community tanks with peaceful cichlids (angelfish, keyholes), keep one pair per 40 gallons. Avoid with small tetras or guppies (they will be eaten).
What are the exact water parameters for Firemouth Cichlids?
Target pH 6.5 - 7.5, General Hardness 5 - 15 dGH, Carbonate Hardness 4 - 12 dKH, Total Dissolved Solids 150 - 400 ppm, Electrical Conductivity 300 - 800 μS/cm, and temperature 74°F - 82°F (23°C - 28°C). They prefer a sand substrate (depth 1-2 inches) as they scoop and sift during nesting behaviors. Maintain nitrates below 20 ppm with weekly 25% water changes. Use a canister filter (8x turnover). Add driftwood and rocks. Hardness below 4 dGH reduces breeding frequency. Avoid pH crashes below 6.0.
What is the dietary and medication protocol for Firemouth Cichlids?
They are omnivores requiring 40% protein, 10% fat, 50% plant matter. Feed high-quality cichlid flakes (Omega One), sinking pellets (Hikari Cichlid Gold), frozen bloodworms, brine shrimp, and blanched vegetables daily. Offer spirulina wafers and peas. Medication alert: Tolerate copper (0.2 mg/L) and formalin. Praziquantel is safe. Salt baths up to 5 ppt treat external parasites. Quarantine with metronidazole (5 mg/L) for 10 days to treat hexamita. They are hardy but can carry internal parasites; feed medicated food.
How to breed Firemouth Cichlids with environmental triggers?
Condition a bonded pair with live blackworms and bloodworms for 2 weeks. Raise temperature to 80°F (27°C) and perform 30% water change with slightly cooler (75°F/24°C) water. Provide a flat stone or clay pot (tilted on side). The pair cleans the site; female lays 100-300 eggs. Both parents guard and fan eggs. Eggs hatch in 48-72 hours at 78°F (25.5°C). Wrigglers become free-swimming in 5-7 days. Feed crushed flakes, baby brine shrimp, and microworms. Remove parents if they become aggressive, but typically good parents. Frequent 20% water changes are critical for fry growth.

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