Compatibility Overview
Angelfish and Goldfish are generally not recommended to be housed together. The issues listed above — whether water parameter incompatibility, predation risk, or aggression — create conditions where one or both fish are likely to suffer harm or chronic stress.
| Factor | Angelfish | Goldfish | Verdict |
|---|---|---|---|
| Temperature | 74–84°F | 50–74°F | ⚠️ 74–74°F (narrow) |
| pH Range | 6.0–7.5 | 6.5–8.0 | ✅ 6.5–7.5 |
| Temperament | semi | peaceful | ⚠️ Monitor |
| Adult Size | 6 in | 12 in | ⚠️ 2.0× difference |
| Min. Group | 1+ | 1+ | See below |
| Min. Tank Size | 100 gallons (for both species) | — | |
✅ Compatibility Positives
❌ Incompatibility Reasons
Species Profiles
Angelfish — Pterophyllum scalare
Elegant South American cichlids with long flowing fins. Generally peaceful but territorial when breeding and will eat very small fish.
Goldfish — Carassius auratus
Classic pond and aquarium fish that prefer cool water. Heavy waste producers that require robust filtration. Will eat small fish and shrimp.
Frequently Asked Questions
Can Angelfish live with Goldfish?
Generally not recommended. Angelfish and Goldfish are generally not recommended to be housed together. The issues listed above — whether water parameter incompatibility, predation risk, or aggression — create conditions where one or both fish are likely to suffer harm or chronic stress.
What tank size do I need for Angelfish and Goldfish together?
A minimum of 100 gallons is recommended for keeping Angelfish and Goldfish together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Angelfish and Goldfish?
74–74°F (narrow)
Is a Angelfish aggressive toward a Goldfish?
Angelfish is semi and Goldfish is peaceful. Angelfish requires tropical water; Goldfish requires cold water. These environments are incompatible.