Angelfish and Glass Catfish Compatibility Overview
Angelfish and Glass Catfish can potentially coexist, but the combination requires careful attention. Their pH ranges overlap only partly, so aim for the shared band and keep it steady. A larger tank (minimum 75 gallons), dense planting, and close monitoring are essential.
| Factor | Angelfish | Glass Catfish | Verdict |
|---|---|---|---|
| Temperature | 74โ84ยฐF | 68โ79ยฐF | โ 74โ79ยฐF |
| pH Range | 6.0โ7.5 | 4.0โ7.0 | โ 6.0โ7.0 |
| Temperament | semi | peaceful | โ ๏ธ Monitor |
| Adult Size | 6 in | 2.6 in | โ ๏ธ 2.3ร difference |
| Min. Group | 1+ | 6+ | See below |
| Min. Tank Size | 75 gallons (for both species) | โ | |
Compatibility Positives
Caution Points
Species Profiles
Angelfish โ Pterophyllum scalare
Elegant South American cichlids with long flowing fins. Generally peaceful but territorial when breeding and will eat very small fish.
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.
Frequently Asked Questions
Can Angelfish live with Glass Catfish?
With significant caution and a larger tank. Angelfish and Glass Catfish can potentially coexist, but the combination requires careful attention. Their pH ranges overlap only partly, so aim for the shared band and keep it steady. A larger tank (minimum 75 gallons), dense planting, and close monitoring are essential.
What tank size do I need for Angelfish and Glass Catfish together?
A minimum of 75 gallons is recommended for keeping Angelfish and Glass Catfish together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Angelfish and Glass Catfish?
74โ79ยฐF โ inside Angelfish's 74โ84ยฐF and Glass Catfish's 68โ79ยฐF.
Is a Angelfish aggressive toward a Glass Catfish?
Angelfish is semi and Glass Catfish is peaceful. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Angelfish and Glass Catfish
Use the scenario that matches the actual group sizes and temperament you plan to keep.
| Scenario | Tank | When it applies |
|---|---|---|
| Minimum viable | 75 gal | Only for the recommended minimum groups, mature filtration, and close monitoring. |
| Recommended community | 125 gal | Adds territory, swimming room, and a safer buffer for behavior. |
| Low-conflict setup | 150 gal | Best when keeping larger schools or reducing territorial pressure. |