Redtail Hillstream Loach “Gastromyzon sp. Sk02”
The Redtail Hillstream Loach (Gastromyzon sp. Sk02) is a captivating freshwater fish native to fast-flowing mountain streams in Southeast Asia. Known for its distinctive red tail and tiger stripped body, this hillstream loach is prized by aquarists for its unique appearance and algae-eating behavior.
Basic Information
| Temperament | Peaceful |
|---|---|
| Max Size | 2″ |
| pH | 6.0–7.5 |
| Temperature | 70-76ºF |
| Diet | Herbivorous |
FAQ
What makes the Redtail Hillstream Loach unique among loach species?
It has a distinctive red tail and a tiger-striped body pattern, which sets it apart from other loach species. It also actively feeds on algae, making it a useful addition to algae-controlled aquariums.
Is this loach suitable for community tanks?
Yes, it is peaceful and generally gets along with other non-aggressive fish species in a well-maintained community tank.
What type of water conditions does it prefer?
It thrives in slightly acidic to neutral water with a pH between 6.0 and 7.5 and a temperature range of 70–76°F.


Michelle Nash –
The Redtail Hillstream Loach is a striking addition to my tank. Its red tail stands out beautifully, and it’s very active, especially during feeding. It helps control algae on the glass and rocks without being aggressive. Easy to care for and maintains a calm presence in the group.
Dylan Hunter –
I was impressed by how quickly it adapted to the tank. The tiger-striped body pattern is unique and eye-catching. It’s a peaceful fish that doesn’t compete with other species. Feeds well on algae wafers and blanched vegetables.
Bella Berry –
This loach has become a highlight in my aquarium. It’s active but not boisterous, and its algae-eating habits have reduced the need for frequent cleaning. The water parameters are stable, and it seems happy in the current setup.