Differs from Betta hipposideros in the following characters: µ-shaped black throat mark (vs. horseshoe-shaped black mark); absence of both dorsal and caudal transverse bars (vs. presence); fewer subdorsal scales (mode 5-6 vs. 6 1/2). Distinguished from Betta renata in the following characters: µ-shaped black throat mark (vs. kidney-shaped); absence of both dorsal and caudal transverse bars (vs. presence); non-spotted opercle (vs. spotted opercle); opercle with yellow lower margin (vs. black margin); fewer subdorsal scales (mode 5-6 vs. 6 1/2). Can be differentiated from Betta spilotogena in the following characters: µ-shaped black throat mark (vs. black median spot); non-spotted opercles (vs. spotted opercle; and an opercle with yellow lower margin (vs. back margin) (Ref. 56386).