Can Molly Live With Hillstream Loach?
Molly and Hillstream Loach are compatible. Temperature overlap 72–75°F. Both peaceful.
Conditions: Minimum 20 gallon tank.
Parameter Comparison
| Parameter | Molly | Hillstream Loach | Overlap |
|---|---|---|---|
| Temperature | 72–82°F | 65–75°F | 72–75°F ✓ |
| pH Range | 7–8.5 | 6.5–7.5 | 7–7.5 ✓ |
| Temperament | peaceful | peaceful | Both peaceful ✓ |
| Max Size | 4.5" | 3" | Similar ✓ |
| Min Tank Size | 20 gal | 20 gal | 20 gal minimum together |
| Diet | Omnivore | Herbivore | — |
| Care Level | beginner | intermediate | — |
Tank Requirements for Molly + Hillstream Loach
To keep Molly and Hillstream Loach together, you need at minimum a 20 gallon tank. Molly should be kept in a school of 4+. Hillstream Loach should be kept in a school of 3+. Provide adequate filtration, stable temperature with a heater, and hiding spots to reduce stress.
Species Profiles
Molly
Poecilia sphenops
Mollies are versatile livebearers that come in many varieties including black, dalmatian, balloon, and sailfin. They prefer hard, alkaline water and can even tolerate brackish conditions. They are active, personable fish that breed easily.
Full care guide →Hillstream Loach
Sewellia lineolata
Hillstream loaches are fascinating flat-bodied fish that resemble tiny stingrays. They are specialized for life in fast-flowing, oxygen-rich streams and use their modified pelvic and pectoral fins to grip smooth rocks in strong current. Their unique appearance, algae-eating habits, and cool-water preference make them popular with experienced fishkeepers looking for something different.
Full care guide →