Overview
The Clown Loach (Chromobotia macracanthus) is a freshwater fish belonging to the family Cobitidae. It thrives at temperatures of 25–30 °C with a pH of 6.0–7.5, and requires a minimum tank volume of 400 litres. Known for its peaceful, playful, social loach, it is considered a intermediate-level species. Often found lying on their side or in unusual positions — completely normal behaviour, not illness. Water changes of 25–30 % weekly, stable parameters, and appropriate tank mates are key to long-term success with this species.
Scientific Classification
| Rank | Classification |
|---|---|
| Family | Cobitidae |
| Genus | Chromobotia |
| Species | Chromobotia macracanthus |
| Water type | freshwater |
| Native range | Southern Asia|Oriental (Indomalaya) |
Natural Habitat
Chromobotia macracanthus originates from Southern Asia|Oriental (Indomalaya). It inhabits freshwater environments and is adapted to the water conditions found in its native range.
Appearance
Adults reach 30–40 cm (15–20 cm typical in aquariums) in length. The body is freshwater and the species displays characteristic coloration suited to its environment.
Behavior
This species is described as a peaceful, playful, social loach. It naturally schools and should be kept in groups of 6 or more. Activity level is moderate. Often found lying on their side or in unusual positions — completely normal behaviour, not illness.
| Trait | Value |
|---|---|
| Temperament | peaceful, playful, social loach |
| Schooling | Yes |
| Activity level | moderate |
Water Requirements
| Parameter | Ideal Range | Notes |
|---|---|---|
| Temperature | 25–30°C (77–86°F) | Use a reliable adjustable heater |
| pH | 6–7.5 | Avoid sudden swings |
| Hardness (GH) | 5–12 dGH dGH | Soft to moderately hard |
| Ammonia | 0 ppm | Any detectable ammonia signals a problem |
| Nitrite | 0 ppm | Toxic even at low levels |
| Nitrate | <15 ppm | Manage through regular partial water changes |
| Min. tank | 400L (106 gal) | Larger tanks are easier to keep stable |
Interesting Facts
- Clown Loaches make audible clicking sounds, especially when excited during feeding.
- They are voracious snail eaters — a natural and effective biological control for pest snail outbreaks.
- Growth is very slow in aquariums; a 15 cm fish may be 10 years old.
📋 Full Care Guide
Ready to set up a tank for your Clown Loach? The complete care guide covers tank setup, feeding schedule, common diseases, tank mates, and breeding.
Read Clown Loach 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.