Glass Catfish and Otocinclus Compatibility Overview
Glass Catfish and Otocinclus 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 | Glass Catfish | Otocinclus | Verdict |
|---|---|---|---|
| Temperature | 68โ79ยฐF | 72โ82ยฐF | โ 72โ79ยฐF |
| pH Range | 4.0โ7.0 | 6.0โ7.5 | โ 6.0โ7.0 |
| Temperament | peaceful | peaceful | โ Compatible |
| Adult Size | 2.6 in | 1.5 in | โ Similar |
| Min. Group | 6+ | 4+ | See below |
| Min. Tank Size | 20 gallons (for both species) | โ | |
Compatibility Positives
Caution Points
Species Profiles
Glass Catfish โ Kryptopterus vitreolus
The Glass Catfish, Kryptopterus vitreolus, is a popular freshwater aquarium fish known for its unique, translucent body and iridescent scales. It is a peaceful species that thrives in groups and is suitable for beginners due to its hardy nature. These catfish are bottom-dwellers and require a well-decorated tank with plenty of swimming space.
โ Full Glass Catfish care guide
Otocinclus โ Otocinclus spp.
Tiny algae-eating catfish that are peaceful with all species. Need established algae growth and biofilm; sensitive to ammonia.
Frequently Asked Questions
Can Glass Catfish live with Otocinclus?
Yes, in a well-planned setup. Glass Catfish and Otocinclus 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 Glass Catfish and Otocinclus together?
A minimum of 20 gallons is recommended for keeping Glass Catfish and Otocinclus together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Glass Catfish and Otocinclus?
72โ79ยฐF โ inside Glass Catfish's 68โ79ยฐF and Otocinclus's 72โ82ยฐF.
Is a Glass Catfish aggressive toward a Otocinclus?
Glass Catfish is peaceful and Otocinclus is peaceful. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Glass Catfish and Otocinclus
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 21 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. |