Parosphromenus phoenicurus, a species of licorice gourami. These fish are native to the freshwater peat swamps of Southeast Asia. They are known for their vibrant colors, especially the males during breeding season, which display striking hues of red, blue, and green. Licorice gouramis, including Parosphromenus phoenicurus, require very specific conditions to thrive in captivity. They prefer soft, acidic water and a diet of live foods. Origin: Borneo (Kalimantan)Family: OsphronemidaeAdult Size: 2.5–3 cmTemperament: Peaceful, timidDifficulty: AdvancedTank Level: Mid–bottomLifespan: ~3–5 years with ideal care Overview The Liquorice Gourami, Parosphromenus phoenicurus, is one of the rarest and most sought-after blackwater gouramis. Known for its striking iridescent colours and vibrant red/orange tail, this species is prized by advanced hobbyists who appreciate natural behaviours, soft-water requirements, and species-only setups. Appearance Males display bright iridescent blue/green striping Distinct flame-red caudal fin (name “phoenicurus” means fire-tail) Females are smaller, rounder, and more subdued in colour Colour intensifies significantly during courtship Behaviour Extremely peaceful but shy Best kept in a species-only aquarium or with equally delicate microfish Males display beautiful courtship dances Bubble‑nest / cave‑spawning tendencies typical of Parosphromenus Tank Requirements Requirement Ideal Tank Size 10–20 gallons for a group Water Type Soft, acidic blackwater pH 4.0–6.0 GH 0–2 dGH KH Extremely low Temperature 24–27°C (75–81°F) Flow Very gentle Lighting Dimmed Aquascaping Lots of leaf litter (catappa, beech, oak) Peat, botanicals, and tannins Fine roots, caves, and shaded areas Dark substrate enhances comfort and colour Diet Recommended Foods Live baby brine shrimp Microworms Grindal worms Daphnia Blackworms (small pieces) High-quality frozen cyclops or rotifers Tankmates Choose very carefully ,they can be easily stressed. Good options: None (species-only is best) Very small, calm blackwater fish such as Boraras species (only if tank is large enough) Avoid: Any boisterous or fast-feeding fish Shrimp that may outcompete for food Larger gouramis or bettas Breeding Breeding this species is possible but considered advanced. Key points: Provide small caves (film canisters, mini coconut caves, leaf pockets) Male guards eggs Keep pH low (4–5.5) Use extremely soft water Fry take infusoria, then baby brine shrimp Paros are highly sensitive to water quality; stability is essential.
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