Overview
The Farlowella acus, or Twig Catfish, is a popular freshwater species known for its peaceful nature and unique appearance. These fish thrive in a well-maintained aquarium with plenty of space and hiding spots. They are compatible with a variety of tankmates but may be sensitive to rapid changes in water parameters. Their long, cylindrical bodies and dark brown coloration with silver spots and stripes make them visually appealing additions to any tank.
Scientific Classification
| Rank | Classification |
|---|---|
| Family | Loricariidae |
| Genus | Farlowella |
| Species | Farlowella acus |
| Water type | freshwater |
Natural Habitat
Native to the Orinoco River basin in South America, Farlowella acus are often found in slow-moving waters with dense vegetation.
Appearance
The Twig Catfish has a distinctive appearance with a long, cylindrical body and a mottled color pattern of dark brown, silver, and white.
Behavior
These catfish are generally peaceful and do not exhibit high levels of aggression. They are best kept in groups to reduce stress and encourage natural behavior. Their moderate activity level and preference for quiet, undisturbed areas make them ideal for a community tank.
| Trait | Value |
|---|---|
| Temperament | peaceful community fish |
| Schooling | No |
| Activity level | moderate |
Water Requirements
| Parameter | Ideal Range | Notes |
|---|---|---|
| Temperature | 22–28°C (72–82°F) | Use a reliable adjustable heater |
| pH | 6–7.5 | Avoid sudden swings |
| Hardness (GH) | 3-15 dGH dGH | Soft to moderately hard |
| Ammonia | 0 ppm | Any detectable ammonia signals a problem |
| Nitrite | 0 ppm | Toxic even at low levels |
| Nitrate | <20 ppm | Manage through regular partial water changes |
| Min. tank | 100L (26 gal) | Larger tanks are easier to keep stable |
Interesting Facts
- Can grow up to 15 cm in length
- Feeds primarily on algae and detritus
- Has a lifespan of 5-7 years
📋 Full Care Guide
Ready to set up a tank for your Twig Catfish? The complete care guide covers tank setup, feeding schedule, common diseases, tank mates, and breeding.
Read Twig Catfish Care Guide →Related Species
Related Species & Guides
This species profile was reviewed for biological accuracy and practical aquarium care guidance. For suspected illness or disease, test your water parameters first and consult an aquatic veterinarian if symptoms persist.