Sewellia lineolata also known as Hillstream loaches are considered the most beautiful species in this genus. This species is native to Vietnam and S. lineolata is listed on IUCN Red List of Endangered species marked as Vulnerable due to overfishing and habitat loss and degradation. Further declines are expected as several dams are under construction within its small distribution area. So it’s important to keep this species in the hobby. Some of the common or nicknames for this loach is listed as include Gold Ring Butterfly Sucker, Reticulated Hillstream Loach, and Tiger Hillstream Loach. This species requires high oxygen requirements in terms of shipping. Known to be active and entertaining Hillstream species are fun to watch when engaging with each other. Check out the Hillstream loach video below to watch a specimen dine on zucchini and notice the gorgeous reticulated pattern. In the aquarium it’s important to keep excellent water flow and aeration. So an air stone and a power head should create a nice current in the tank. Like other loaches rocks and driftwood are welcome for hiding places. To read fantastic and extensive article on Sewellia lineolata; hillstream loach care sheet, check out this paper titled Hillstream Loaches - The Specialists at Life In The Fast Lane written by by Martin Thoene.