Betta Albimarginata

Betta Albimarginata (Betta albimarginata) — the Strawberry Betta or White-Edged Betta — is one of the most charming and accessible wild betta species. The species name means 'white-margined' — a reference to the distinctive white edging on the fins of adult males. The body displays warm red to orange-red coloration with the white fin trim, creating a clean and elegant color combination. Native to the rivers and streams of East Kalimantan (Borneo), Indonesia.

Found in shallow, slow-moving streams and forest pools in Kalimantan — soft, slightly acidic water with leaf litter and root structures. One of the more approachable wild betta species in terms of care requirements, B. albimarginata adapts reasonably well to captive conditions while still requiring appropriate soft, acidic water.

Males display the characteristic white fin edging and warm body coloration. Females are more subdued but retain the overall body shape and some fin edging. The species is a paternal mouthbrooder with a relatively short incubation period compared to other wild bettas — approximately 7–10 days.

B. albimarginata is often recommended as a first wild betta for keepers transitioning from B. splendens — the care requirements are specific but manageable, the fish is robust relative to other wild species, and the mouthbrooding behavior is fascinating to observe.

This species is a paternal mouthbrooder — after spawning, the male collects the eggs and incubates them in his mouth for approximately 10–14 days until the fry are free-swimming. During this period the male will not eat and should not be disturbed. It is a remarkable behavior to observe — the male's throat visibly bulges, and he will periodically reposition the eggs in his mouth. The fry emerge as fully formed miniature versions of the adults, already capable of hunting small prey. This mouthbrooding strategy produces fewer but better-protected offspring than the bubble-nesting approach of Betta splendens.

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. Males of most species are aggressive toward conspecific males and can be stressed or harassed by the presence of other fish. A dedicated species aquarium gives wild bettas the stable, quiet environment they require and allows their natural behaviors to be observed fully.