Can Pea Puffer Live With Hillstream Loach?
Pea Puffer is aggressive and will likely attack or stress tank mates.
Parameter Comparison
| Parameter | Pea Puffer | Hillstream Loach | Overlap |
|---|---|---|---|
| Temperature | 74–82°F | 65–75°F | 74–75°F ✓ |
| pH Range | 7–8 | 6.5–7.5 | 7–7.5 ✓ |
| Temperament | aggressive | peaceful | Aggression risk ✗ |
| Max Size | 1" | 3" | Similar ✓ |
| Min Tank Size | 5 gal | 20 gal | 20 gal minimum together |
| Diet | Carnivore | Herbivore | — |
| Care Level | intermediate | intermediate | — |
Species Profiles
Pea Puffer
Carinotetraodon travancoricus
Pea puffers are the smallest freshwater pufferfish in the world, growing to just 1 inch. Despite their tiny size, they have big personalities — they are curious, intelligent, and surprisingly aggressive. They are best kept in species-only tanks and require live or frozen food.
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 →