Hillstream Loach (Sewellia lineolata and related species) is a advanced-level freshwater fish that needs at least 20 gallons and 65-75°F. A flat, fast-water loach that grazes on algae and biofilm. Needs cool, highly oxygenated, flowing water.
Care facts at a glance
| Scientific name | Sewellia lineolata and related species |
|---|---|
| Family | Balitoridae |
| Origin | Southeast Asia |
| Adult size | 2.5 in |
| Minimum tank | 20 gallons |
| Temperature | 65-75°F |
| pH | 6.5-7.8 |
| Temperament | Peaceful |
| Social behavior | Small groups |
| Swim level | Bottom |
| Difficulty | Advanced |
| Diet | Algae and biofilm, small frozen foods |
| Typical lifespan | 5 years |
Quick tips
- Needs cool, oxygen-rich, flowing water.
- Add to a mature tank with biofilm.
San Diego water
Tolerates San Diego's hard, alkaline tap water (pH roughly 7.6-8.6) with slow acclimation and a conditioner that handles chloramine. Learn the numbers in our San Diego tap water guide.
Before you buy
Make sure your tank is cycled (how to cycle a tank), check your numbers with the water testing guide, and use the compatibility guide to check tankmates. These are general ranges; individual fish and local water vary.
Find it at Pet Zone
Pet Zone Tropical Fish is a San Diego aquarium store with two locations. Stock changes daily, so call ahead if you are after a specific species or plant. Shop online at petzonesd.com.
4160 Convoy St, San Diego, CA 92111
(858) 987-0309
Open daily, 10am-6pm
Aquascaping, planted tanks
4266 University Ave, San Diego, CA 92105
(619) 283-1812
Closed Monday; Tue-Fri 10:30am-6pm, Sat 11am-6pm, Sun 11am-4pm
Monster fish, koi