Firemouth Cichlid

Thorichthys meeki

Animalia›Chordata›Actinopterygii›Cichlidae

📍 Yucatan Peninsula, Mexico

The firemouth cichlid is named for the vivid red-orange colouration on the throat and belly. It is a moderately aggressive Central American cichlid that pairs for breeding and defends territories. A stunning fish when in breeding colour.

Size6"

Min Tank30g

semi-aggressive

Zoneall

Care Guide

Diet

Firemouth cichlids are omnivores that thrive on a varied diet of high-quality cichlid pellets as a staple, supplemented with live or frozen foods such as bloodworms, earthworms, and brine shrimp 2-3 times weekly. Include vegetable matter like blanched spinach or spirulina-based foods weekly to support digestive health. Feed adults once daily in portions they can consume in 2-3 minutes.

Behavior

Firemouth cichlids are moderately aggressive and highly territorial, especially during breeding season when they become noticeably more defensive. They are active swimmers that patrol all tank zones and display their characteristic red-orange throat coloration when establishing dominance or courting. They are generally peaceful toward larger fish but will harass smaller species and may consume fry or small invertebrates.

Breeding

Breeding in captivity is moderately difficult and requires dedicated conditioning and proper tank setup. Pairs form strong bonds and will aggressively defend a spawning territory; provide caves or PVC pipes as breeding sites and maintain water parameters at the warmer end (26-28°C). Expect 200-500 fry per spawn, though parents may eat eggs if stressed; remove fry to a separate rearing tank for best survival rates.

Tank Mates

Bristlenose Pleco

Bottom-dweller that avoids conflict; helps with algae control and occupies different tank zone

good

Severum

Similar size and temperament; both are Central American cichlids with comparable aggression levels

good

Emerald Dwarf Rasbora

Small schooling fish; may be chased or eaten, only suitable in larger tanks with dense vegetation

caution

Ramshorn Snail

May be crushed or eaten; provide shelter and monitor closely for predation

caution

Common Diseases

Ich (Ichthyophthirius multifiliis)

Symptoms

White spots on body and fins, rapid breathing, lethargy, rubbing against objects

Treatment

Raise temperature gradually to 28-30°C, perform daily 25% water changes, use aquarium salt (1 teaspoon per 5 gallons) or commercial ich medication for 7-10 days

Hole-in-the-Head (Hexamita)

Symptoms

Erosion of head and lateral line, loss of appetite, white stringy feces

Treatment

Improve water quality with frequent changes, reduce stress, use metronidazole-based medication; ensure adequate nutrition with varied diet

Fin Rot

Symptoms

Frayed or deteriorating fins, discoloration at fin edges, lethargy

Treatment

Perform 50% water change immediately, maintain pristine water conditions, use antibiotic medication if severe; address underlying water quality issues

Bacterial Infection

Symptoms

Red streaking on body, swollen belly, open sores, loss of appetite

Treatment

Isolate affected fish, perform daily water changes, use broad-spectrum antibiotic medication; maintain optimal water parameters to prevent secondary infections