Otocinclus Overview
The Otocinclus Catfish (Otocinclus vittatus) is a freshwater fish from the family Loricariidae. It thrives at temperatures of 22–26 °C with a pH of 6.5–7.5, requiring a minimum tank size of 60 litres. Tiny algae-eating catfish that keeps glass and plant leaves clean. Very sensitive to water quality — quarantine new fish carefully.
Quick fact: Otocinclus vittatus belongs to the family Loricariidae. Care level: intermediate.
Otocinclus Scientific Classification
| Rank | Classification |
|---|---|
| Family | Loricariidae |
| Genus | Otocinclus |
| Species | Otocinclus vittatus |
| Water type | freshwater |
Otocinclus Natural Habitat
Otocinclus Appearance & Size
Otocinclus Behavior & Temperament
Very sensitive to water quality — quarantine new fish carefully
| Trait | Value |
|---|---|
| Temperament | Tiny algae-eating catfish that keeps glass and plant leaves clean |
| Schooling | Yes |
| Activity level | moderate |
Otocinclus Water Requirements
| Parameter | Ideal Range | Notes |
|---|---|---|
| Temperature | 22–26°C (72–79°F) | Use a reliable adjustable heater |
| pH | 6.5–7.5 | Avoid sudden swings |
| Hardness (GH) | soft 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 | 60L (16 gal) | Larger tanks are easier to keep stable |
Important: Always dechlorinate tap water before adding it to the tank. Chlorine and chloramines damage a fish's gills and reduce life expectancy.
Interesting Facts About Otocinclus
- Otocinclus are wild-caught almost exclusively, so acclimate them slowly
Species Related to Otocinclus
Related Species & Guides
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Editorial review
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.