Fiveband Barb

Geographic Origin and Biotope: Endemic to Southeast Asia (Malaysia, Sumatra, Borneo, Singapore). Lives in highly specific habitats: peat swamps and flooded rainforests in the "blackwater" style. The waters are calm, amber or dark brown, steeped in humic acids derived from a thick layer of dead leaves, decaying branches, and decomposing roots.

Taxonomy and Morphology: Cyprinid of modest size (maximum 5 cm / 2 inches). Often confused in person with the Tiger Barb, but presents a significantly more streamlined, hydrodynamic, and less stocky body. Boasts five (sometimes six) well-defined vertical black bars over a body with warm copper or bright brick-red hues. The fifth distinctive band is just behind the eye/gill.

Social Behavior: Unlike the quarrelsome and lively Tiger Barb, the Pentazona is the embodiment of tranquility and shyness. It swims placidly in the lower and middle zones of the tank, seeking the shelter of vegetation. Strictly schooling species: keeping fewer than 8-10 individuals will lead them to live perpetually hidden and faded from terror.

Coloration and Sexual Dimorphism: Base livery ranges from golden copper to deep brick red (based on water acidity). Sexual dimorphism is marked in healthy specimens: males are smaller, thinner, more slender, and display a bright coral/rust red all over their body and fins. Females are stockier, round-bellied, and have duller brown colors.

Aquarium Setup: Tank starting from 80 cm (30 inches) in length. Essential to create an intricate layout: bogwood roots, very fine dark sand substrate, and obligatorily a carpet of dried Catappa leaves (offering shelter and releasing tannins). Light must be very dim or totally shielded by dense floating plants (Salvinia, Limnobium). Water must lack strong currents.

Diet and Feeding: Micro-predator and omnivore. In the wild, it constantly digs into the substrate looking for small crustaceans, larvae, and zooplankton hidden in the mud. In the aquarium, it accepts flakes and soft micro-pellets sinking mid-water, but to make the males' wonderful red pigmentation explode, live or frozen Bloodworms and Daphnia are essential.

Water Quality: Extremely demanding and intolerant. Inhabits hyper-acidic (pH 4.5 - 6.5) and very soft "black" waters (GH 1.0 - 8.0), almost devoid of carbonate hardness, at a temperature of 22.0 - 26.0 °C. Placement in an aquarium with normal hard and alkaline tap water will cause their colors to fade and premature cellular aging.

Compatibility and Tankmates: Given its extreme shyness and the tiny size of its mouth, it NEVER nips other fish's fins (unlike the Tiger Barb). Excellent coexistence with Betta splendens (if tolerant), small Rasboras (Boraras, Trigonostigma), small peaceful bottom Loaches like Pangio, and dwarf Gouramis. Do not mix with large or hyperactive species.

Aquarium Reproduction: Free-spawner on foliage, difficult for the average aquarist to achieve. Requires a separate breeding tank with pH plummeted to 5.0, active peat, Java moss, and grates on the bottom to prevent parents from instantly devouring their own tiny eggs laid at dawn. The minuscule fry need infusoria.

Risks and Diseases: Vulnerable to stress induced by environmental factors: bright lights, water devoid of tannins, or boisterous company will depress it, stopping it from feeding. If nitrate levels are not immaculate in such soft water, it risks bacterial ulcerations. No fish should ever spook it abruptly.