Taxonomy & naming
Tirant described the species in 1884 as Crossochilus cambodgiensis, from the mountains of Samrong Tong in Cambodia. It is now placed in Ceratogarra, a small genus close to Garra, with the authority in parentheses. Stores list it as Garra cambodgiensis, its older placement.
Morphology
Ceratogarra are Garra-like fish with a ventral mouth and a mental disc. The genus name suggests horns, probably tubercles on the snout. FishBase gives this species a maximum of 9.5 in TL.
Habitat
FishBase describes it as living on rocky bottoms in swiftly moving water of small and medium-sized streams, usually abundant. Adults live in loose groups of 4 to 10 fish, and juveniles of 1–1.5 in SL may form schools of tens. The range covers the middle and lower Mekong, Chao Phraya and Mae Khlong drainages and the northern Malay Peninsula, at 68–77 °F.
Feeding
Garra-like fish rasp algae and biofilm from stone. FishBase lists periphyton, phytoplankton and some insects in the diet of this species.
Mating
Mating behaviour has not been described.
Breeding
Captive breeding has not been documented.
In the aquarium
FishBase notes the species is not fished commercially but is occasionally seen in the aquarium trade. Treat it as a hillstream fish: strong flow, high oxygen, rocks to graze, a temperature between 20 and 77 °F and a tight lid, in a group. Care notes come from the genus.
Conservation
The IUCN Red List category is Least Concern, assessed in 2019. Threats have not been described.