Otocinclus and Zebra Danio Compatibility Overview
Otocinclus and Zebra Danio can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Both species are peaceful, and neither poses a major aggression risk to the other. A minimum 20-gallon tank is recommended to provide adequate territory and water volume for both species.
| Factor | Otocinclus | Zebra Danio | Verdict |
|---|---|---|---|
| Temperature | 72โ82ยฐF | 64โ82ยฐF | โ 72โ82ยฐF |
| pH Range | 6.0โ7.5 | 6.5โ8.0 | โ 6.5โ7.5 |
| Temperament | peaceful | peaceful | โ Compatible |
| Adult Size | 1.5 in | 2 in | โ Similar |
| Min. Group | 4+ | 5+ | See below |
| Min. Tank Size | 20 gallons (for both species) | โ | |
Compatibility Positives
Caution Points
Species Profiles
Otocinclus โ Otocinclus spp.
Tiny algae-eating catfish that are peaceful with all species. Need established algae growth and biofilm; sensitive to ammonia.
โ Full Otocinclus care guide
Zebra Danio โ Danio rerio
Extremely hardy, fast-moving schooling fish tolerant of a wide temperature range. Active top-to-mid swimmers compatible with most community fish.
Frequently Asked Questions
Can Otocinclus live with Zebra Danio?
Yes, in a well-planned setup. Otocinclus and Zebra Danio can generally share an aquarium with appropriate planning. Both species prefer overlapping temperature and pH ranges. Both species are peaceful, and neither poses a major aggression risk to the other. A minimum 20-gallon tank is recommended to provide adequate territory and water volume for both species.
What tank size do I need for Otocinclus and Zebra Danio together?
A minimum of 20 gallons is recommended for keeping Otocinclus and Zebra Danio together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Otocinclus and Zebra Danio?
72โ82ยฐF โ inside Otocinclus's 72โ82ยฐF and Zebra Danio's 64โ82ยฐF.
Is a Otocinclus aggressive toward a Zebra Danio?
Otocinclus is peaceful and Zebra Danio is peaceful. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Otocinclus and Zebra Danio
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 20 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 29 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 55 gal | Best when keeping larger schools or reducing territorial pressure. |