Congo Tetra and Hillstream Loach Compatibility Overview
Congo Tetra and Hillstream Loach can potentially coexist, but the combination requires careful attention. Their ranges meet only at 73โ75ยฐF, which leaves no margin for a heater drifting or a warm room. A larger tank (minimum 55 gallons), dense planting, and close monitoring are essential.
| Factor | Congo Tetra | Hillstream Loach | Verdict |
|---|---|---|---|
| Temperature | 73โ82ยฐF | 68โ75ยฐF | โ ๏ธ 73โ75ยฐF (narrow) |
| pH Range | 6.0โ7.5 | 6.0โ7.5 | โ 6.0โ7.5 |
| Temperament | peaceful | peaceful | โ Compatible |
| Adult Size | 3.1 in | 2.6 in | โ Similar |
| Min. Group | 6+ | 4+ | See below |
| Min. Tank Size | 55 gallons (for both species) | โ | |
Compatibility Positives
Caution Points
Species Profiles
Congo Tetra โ Phenacogrammus interruptus
The Congo Tetra is a vibrant and active fish that thrives in a well-maintained freshwater aquarium. With its striking coloration and peaceful nature, it's a great addition to any community tank. This species is best kept in groups and requires a spacious tank with plenty of swimming space.
โ Full Congo Tetra care guide
Hillstream Loach โ Sewellia lineolata
Sewellia lineolata, known as the Hillstream Loach, is a fascinating species for aquarists. These fish require a well-oxygenated, clear water environment with plenty of hiding spots. With a lifespan of 7 years, they are a long-term commitment. Their olive green color and slender body shape add a unique aesthetic to the tank.
Frequently Asked Questions
Can Congo Tetra live with Hillstream Loach?
With significant caution and a larger tank. Congo Tetra and Hillstream Loach can potentially coexist, but the combination requires careful attention. Their ranges meet only at 73โ75ยฐF, which leaves no margin for a heater drifting or a warm room. A larger tank (minimum 55 gallons), dense planting, and close monitoring are essential.
What tank size do I need for Congo Tetra and Hillstream Loach together?
A minimum of 55 gallons is recommended for keeping Congo Tetra and Hillstream Loach together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Congo Tetra and Hillstream Loach?
73โ75ยฐF (narrow) โ inside Congo Tetra's 73โ82ยฐF and Hillstream Loach's 68โ75ยฐF.
Is a Congo Tetra aggressive toward a Hillstream Loach?
Congo Tetra is peaceful and Hillstream Loach is peaceful. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Congo Tetra and Hillstream Loach
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 55 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 75 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 125 gal | Best when keeping larger schools or reducing territorial pressure. |