This species is currently recorded only from the remnant black water swamps in Johor, Malaysia. Maximum length based on type specimen, to be replaced with a better reference .
This species is distinguished from its congeners by the following set of characters: black markings on lower jaw that are continuous with two black downward curved bars on the anterior throat, ending with rounded bulging ends near edge of lower jaw resembling a distinct omega (?) pattern; opercle uniform brown with light dark brown mottling, operculum without lower distal margin black; black transverse bars on the dorsal and caudal fin interradial membranes; absence of a dark distal border on anal fin .Cross section: oval.
Behavioural data for Betta Omega is currently being reviewed.
Diet information for Betta Omega is currently being compiled.
Reproduction data for Betta Omega is currently being compiled.
Freshwater; brackish; benthopelagic. Tropical Indian Ocean: Malaysia.
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