Unusually for fish, the female is more highly coloured.[2] She has more intense black bands across the body, and pink to orange colouration in the ventral region and on the dorsal fin.[15][16] The maximum standard length has been reported to be 10 centimeters, with total length near 12 centimeters (4.7 in).[1][17] The body weight of the fish is about 34–36 grams (1.2–1.3 oz).[1] Selective breeding has resulted in a leucistic strain, which lacks the dark barring of the wild type.[15] These are known commonly as white convicts, pink convicts, gold convicts, and A. nigrofasciata "Kongo".[1][16] The leucistic colouration is caused by a mutation in an autosomal gene and is recessively inherited.[18]