Angelfish and Molly Compatibility Overview
Angelfish and Molly can potentially coexist, but the combination requires careful attention. Their usable pH overlap is narrow and requires stable, tested water. A larger tank (minimum 75 gallons), dense planting, and close monitoring are essential.
| Factor | Angelfish | Molly | Verdict |
|---|---|---|---|
| Temperature | 74โ84ยฐF | 72โ82ยฐF | โ 74โ82ยฐF |
| pH Range | 6.0โ7.5 | 7.5โ8.5 | โ ๏ธ 7.5โ7.5 (narrow) |
| Temperament | semi | peaceful | โ ๏ธ Monitor |
| Adult Size | 6 in | 4 in | โ Similar |
| Min. Group | 1+ | 3+ | 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.
Molly โ Poecilia sphenops
Hardy livebearers that prefer alkaline, hard water โ sometimes slightly brackish. Prolific breeders; peaceful community fish.
Frequently Asked Questions
Can Angelfish live with Molly?
With significant caution and a larger tank. Angelfish and Molly can potentially coexist, but the combination requires careful attention. Their usable pH overlap is narrow and requires stable, tested water. A larger tank (minimum 75 gallons), dense planting, and close monitoring are essential.
What tank size do I need for Angelfish and Molly together?
A minimum of 75 gallons is recommended for keeping Angelfish and Molly together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Angelfish and Molly?
74โ82ยฐF โ inside Angelfish's 74โ84ยฐF and Molly's 72โ82ยฐF.
Is a Angelfish aggressive toward a Molly?
Angelfish is semi and Molly is peaceful. No major aggression issues are expected between these species.
Related Compatibility Guides
Tank Size for Angelfish and Molly
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. |