Cichla mirianae

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Cichla mirianae, also sold under the name Red Fugo, is a South American predatory cichlid sought after for its coloration and behavior. This rare species comes from the Rio Xingu in Brazil, a river system known for clear water, rocks, and areas of strong current. Its care requires a large aquarium, powerful filtration, and carefully selected tank mates. The specimens offered are wild collected, and this species is available exclusively from Ton.Fish in Canada, making it a fish intended for experienced aquarists.

General description of the species

Cichla mirianae belongs to the group of large predatory cichlids in the genus Cichla, within the family Cichlidae. Its general profile is that of a robust, active, territorial fish adapted to chasing small prey in open water. The trade name Red Fugo emphasizes its red tones, which are especially visible on the fins and parts of the body in well-conditioned specimens. It is a rare aquarium fish, particularly suited to specialized setups dedicated to large Amazonian predators. Its care requires substantial volume, highly oxygenated water, and careful water-quality management. Like several Cichla, it can become dominant, especially when mature and defending a territory or feeding area.

Geographic origin and biotope

Country of reference: Brazil. Cichla mirianae is associated with the Rio Xingu basin in the Brazilian Amazon, in the state of Pará. This river is known for clear-water sections, rocky outcrops, pebble beaches, and areas influenced by current. The biotope generally combines rocky shelter, deeper pools, and margins affected by riverside forest. To recreate these conditions in an aquarium, use warm, clean, highly oxygenated water with strong circulation, while avoiding a uniform current throughout the entire tank. Stable rocks and sturdy roots can provide territorial reference points. **Powerful filtration** is essential because this predator eats rich foods and produces a high organic load.

Precise location and local name

The species is associated with the Rio Xingu in the Amazon basin of Brazil, particularly the middle Xingu region. The most useful name for aquarists is Red Fugo, a trade name used to distinguish this form or presentation of the species. In its native range, fish of the genus Cichla are generally called tucunaré, but this vernacular name can cover several species and should not be used alone for identification. In the trade, it is better to retain the scientific name Cichla mirianae and request the exact collection locality, especially for a rare species offered as a **wild fish**.

Appearance and physical characteristics

Cichla mirianae has a powerful, elongated body, a broad head, a terminal mouth, and a continuous dorsal fin typical of large predators in the genus Cichla. Its coloration may show golden, olive, or brownish tones, with variable dark markings influenced by age, mood, and social context. The most desirable feature sold under the name Red Fugo is the presence of red or orange tones on the fins and parts of the body. Color intensity often increases when the fish is well fed, unstressed, and kept in stable water. Its size and strength require a layout without fragile equipment or small fish that could be swallowed.

General diet

In nature, Cichla mirianae is a predator that feeds mainly on fish and other appropriately sized aquatic prey. In aquariums, young specimens may accept frozen or prepared meaty foods, while adults should receive a varied, controlled diet. Quality pellets for large predatory cichlids can provide a practical staple, supplemented with suitable foods such as krill or selected crustaceans. Avoid feeder fish from uncertain sources, as they may transmit parasites or unbalance the diet. Meals should remain measured: **overfeeding** increases water pollution and promotes excessive weight gain. Feeding regularly and without excess helps maintain good condition and stronger coloration.

Essential data

• River of origin: Rio Xingu
• Local name used: Red Fugo; tucunaré for the genus
• Origin of the scientific name: Cichla is the genus name; mirianae is the specific epithet
• Etymology of the full name: Cichla comes from a Greek term associated with a fish; mirianae is a dedicated specific epithet
• Common/vernacular names: Red Fugo; tucunaré
• Family: Cichlidae
• Subfamily: Cichlinae
• Name pronunciation: kik-la - mee-ree-ah-nay
• Discovery: Sven O. Kullander and Efrem J. G. Ferreira, 2006
• Maximum adult size: Large predatory cichlid; plan an aquarium for a substantial adult size
• Water temperature and pH: Warm, stable, highly oxygenated tropical water
• Watercourse appearance and surrounding vegetation: Clear water, rocks, pebbles, current, and riverside forest
• Typical tank mates: Large predatory cichlids; large characiforms; robust large loricariids
• Temperament and behavior: Active, territorial predator with potential aggression
• Water depth: Variable sectors including margins, pools, and rocky areas
• Sexual dimorphism: Difficult to distinguish reliably in immature specimens
• Bottom structure and flow: Rocks, pebbles, and areas of strong current; powerful filtration recommended

In your aquarium

Success with Cichla mirianae begins with a very large aquarium, a secure lid, and filtration capable of handling a heavy organic load. Provide firmly placed rocks, open swimming space, and shelters without sharp edges. Tank mates should be selected around fish of comparable size; small companions will be viewed as prey. Because the specimens are wild collected and the species is very rare, calm acclimation and close observation are especially important. Stable water, measured feeding, and frequent maintenance are the keys to long-term success.