Otocinclus muckuturi

Otocinclus muckuturi is described from Bolivian drainage systems and represents one of several Otocinclus species from this landlocked country that remain poorly studied and infrequently exported. Like its Bolivian congener O. mariae, it inhabits the warm, moderately soft water streams of the Amazonian lowlands. It is a small, compact species with faint body reticulations that distinguish it from the plainer-striped common trade species.

Bolivian Amazonian streams are warm, clear to slightly turbid, and have varied water chemistry depending on whether they drain the Andes (moderately hard) or the lowland shield (soft and slightly acidic). O. muckuturi is likely found in the latter habitat type, grazing periphyton in shallow stream margins with aquatic vegetation and submerged wood.

For aquarists, O. muckuturi is primarily of interest to collectors maintaining comprehensive Otocinclus species collections. Its care is standard for the genus, and it can be housed alongside other Otocinclus species without issue. The faint reticulated patterning gives it a slightly different visual texture compared to the common striped species, adding diversity to a mixed otocinclus group.

Water: Soft to moderately hard at pH 6.0–7.5 and 21–26°C; consistent quality with low ammonia and regular partial changes. Tank: 40 litres minimum with plants and established biofilm; can be mixed with other Otocinclus species. Feeding: Standard Otocinclus diet: biofilm, blanched courgette, cucumber, and algae wafers. Breeding: Not documented; standard soft-water conditioning applies. Compatibility: Peaceful with all small community species and invertebrates.