When the type series was collected the Sungai Asinua contained clear, slow to fast-moving water with a temperature of 26 °C.

The substrate was composed of mud, sand an…

The type locality is a karst pool around 30-40 m in length, 10m in width and up to 4 m deep.

It contains still, transparent water, has a single inflow and outflow, is surrounded by rainforest and in September 2010 the water temperature was 21.5°C/70.7°F.

The habitat is used by locals as a bathing pool and sympatric species included a nat…

This species is so ubiquitous across its natural range that it’s often referred to simply as ‘common barb’. Basic adult colour pattern consists of a small, dark spot at the base of the dorsal-fin origin and another on the caudal peduncle but overall appearance varies somewhat depending on origin, with the anterior dark spot enlarged ventrally forming a bar or posterior spot extending into the caudal-fin, for example. The spots may also appear darker or lighter in some individuals.

This species was discovered in 2009 and as far as we know it has only been collected for the aquarium hobby on a single occasion to date, by Jeffrey Christian of Maju Aquarium, Frank Evers and Hans-Georg Evers.

Prior to description it was referred to as O. sp. ‘Kendari’, O. sp. ‘neon’ or O. sp. ‘Sulawesi’.

The type locality is a karstic freshwater stream flowing under 80% forest cover with a mixed substrate of mud and sand plus patches of leaf litter.

O. woworae was collected from a still pool around 3-4 m deep, opposite an affluent spring, where it was schooling with a species of Nomorhamphus which may turn out to be a form of N. ebrardtii but has subsequently appeared in the aquarium trad…