The Melanotaenia ammeri lives in the pelagic, freshwater, depth range 0 - 1 m environment.
Melanotaenia ammeri is named after Max Ammer and is distinguished from congeners by the following combination of characters: IV–VI,12–15 dorsal rays; I,20–25 anal rays; 12–14 pectoral rays; 34-36 lateral scales; 17–19 predorsal scales; 16–18 gill rakers on first arch; colour in More