Acanthocobitis zonalternans can reach a total length of around 8 centimeters. Sexing them is easiest during mating season. Males get brighter colored fins, especially the dorsal fin has brighter colors.
Synonyms: Cobitis zonalternans, Nemacheilus zonalternans, Noemacheilus zonalternans, Nemacheilus phuketensis, Nemachilus zonalternans, Noemacheilus phuketensis
This species belongs to what are called Loaches. They are subdivided into 3 groups. Acanthocobitis zonalternans is a Hilstream Loach which means that they live in reasonably fast flowing water. Their aquarium therefore preferably has a fair amount of current and which is also oxygen-rich. The substrate can consist of rounded stones interspersed with some sand. You can provide some wood and possibly plants to provide hiding places on the edges of the aquarium.
Temperature: 18-25 degrees Celsius
pH: 6.0 – 7.5
GH:8 – 12
Like most fishes from fast flowing rivers and streams Acanthocobitis zonalternans is sensitive to water conditions. Make sure to have a tight schedule in maintenance, water changes and cleaning the substrate.
They will accept most types of food. Just make sure to provide a variety of foods like sinking wafers and live or frozen foods like brine shrimp, blood worms, mysis and daphnia.
John de Lange