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Datasheet
| Minimum Tank Size | 160 litres / 42.27 US gallons |
| Maximum Size | 8.0cm / 3.15inches |
| Temperature | 17°C / 62.60°F - 23°C / 73.40°F |
| Hardness | 3.03dgH / 54ppm - 15.02dgH / 268ppm |
| pH | 6.0-7.0 |
General Description
Members of the genus Batasio, such as Batasio Tigrinus, are characterized by a laterally-compressed body shape, large sensory pores on the head, a narrow mental region, and other distinctive anatomical features. They are typically found in headwater streams and upper reaches of smaller rivers with specific water conditions.
Aquarium Setup
The Batasio Tigrinus is not recommended for a general community aquarium. A suitable setup mimics a flowing river, featuring variably-sized rocks, gravel, large boulders, driftwood branches, and tough aquatic plants like Microsorum, Bolbitis, or Anubias spp. Clean water, high oxygen levels, and moderate water movement are essential for their well-being.
Behaviour
These fish are not competitive and should be housed with peaceful, similarly-sized schooling cyprinids, characids, livebearers, and specific catfish and loach species. Some fish may grow too large or display aggressive behaviors, so thorough research is crucial before selecting tankmates.
Feeding and Diet
In the wild, Batasio Tigrinus feed on small aquatic crustaceans, worms, insect larvae, and zooplankton. In captivity, they thrive on live or frozen chironomid larvae, bloodworms, Tubifex, Artemia, mosquito larvae, and prepared sinking foods. Wild-caught specimens may initially refuse prepared foods.
Reproduction & Dimorphism
Successful breeding has been observed in captivity with proper conditioning and water changes. The eggs are scattered and hatch within approximately two days. Male Batasio Tigrinus may exhibit a visibly elongated genital papilla anterior to the anal fin, a common dimorphic trait in related species.
Habitat and Distribution
Endemic to the Mae Nam Khwae Noi basin in western Thailand, Batasio Tigrinus inhabits shallow, fast-flowing stretches of streams with rocky substrates and limited aquatic vegetation. These fish prefer highly oxygenated water and are sensitive to organic waste accumulation.
This comprehensive entry provides insights into the ideal care and environment for Batasio Tigrinus, from their habitat preferences to feeding habits and reproduction strategies.