Green Api Api Betta

Green Api Api Betta (Betta mulyadii) is a tiny, rarely seen wild betta from a single swamp near Duri in Riau, Sumatra. It reached the hobby in the early 2010s under the trade name "Api Api" — Indonesian for "fire" — after its reddish body and pointed, lance-shaped tail, and it was only recently described as a species, named after Mulyadi Tjoa Hong Tjai, the collector who discovered it. Males have a reddish body with iridescent green and golden patches across the head and back, and red fins edged in bright blue. The "Green" form shows more of that green sheen. Females are similar but less red, with a fainter blue edge to the fins. It belongs to the Betta coccina group of small peat-swamp bettas.

The only known wild population lives in one small, shaded swamp surrounded by oil-palm plantations and working oil wells. Like other coccina-group bettas, it lives in still, soft, tea-stained water over thick leaf litter. Because its whole known range is so small and under pressure, the scientists who described it have proposed it as Critically Endangered. That makes well-kept, breeding aquarium populations especially valuable.

Recreate those conditions and the fish will reward you. A 10-gallon or larger species tank works well, with dim lighting, a dark substrate covered in leaf litter, floating plants, and plenty of hiding places among wood and plants. Keep water movement to a minimum — a gentle sponge filter is ideal. Api Api Bettas are shy at first and will spend more time in the open, with better color, once they feel secure. Keep a tight-fitting lid: wild bettas jump, and a small gap is enough for an escape.

Api Api Bettas are bubble nesters. The male builds a small nest of bubbles at the surface, often tucked under a floating leaf or among plants. After spawning he places the eggs in the nest and guards them until the fry hatch and become free-swimming. They are best kept as a bonded pair. In a larger, heavily planted tank they can also be kept as a small mixed group, where they will choose their own partners. Males become territorial while nesting, so give each pair room and plenty of cover. Spawns are small, and the fry need infusoria or micro-foods before moving on to baby brine shrimp.

Our wild bettas are kept in individual filtered, heated, and UV-sterilized homes — each fish with its own stable, carefully maintained water environment. Wild bettas are more sensitive to water quality than domesticated varieties and are maintained accordingly.

Wild bettas should be kept as species-only — they are not suitable community fish. Their water needs are far more specialized than those of typical community fish, and the shy Api Api is easily stressed or outcompeted at feeding time by more active tankmates. A dedicated species aquarium gives them the stable, quiet environment they require and lets their natural behavior be seen in full.