Compatibility Overview
Ember Tetra 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 | Ember Tetra | Goldfish | Verdict |
|---|---|---|---|
| Temperature | 73–84°F | 50–74°F | ⚠️ 73–74°F (narrow) |
| pH Range | 5.5–7.0 | 6.5–8.0 | ⚠️ 6.5–7.0 (narrow) |
| Temperament | peaceful | peaceful | ✅ Compatible |
| Adult Size | 0.8 in | 12 in | ❌ 15× difference |
| Min. Group | 8+ | 1+ | See below |
| Min. Tank Size | 100 gallons (for both species) | — | |
✅ Compatibility Positives
❌ Incompatibility Reasons
Species Profiles
Ember Tetra — Hyphessobrycon amandae
Tiny orange-red schooling tetra that is among the most adaptable nano fish. Peaceful with everything too small to eat them.
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 Ember Tetra live with Goldfish?
Generally not recommended. Ember Tetra 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 Ember Tetra and Goldfish together?
A minimum of 100 gallons is recommended for keeping Ember Tetra and Goldfish together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Ember Tetra and Goldfish?
73–74°F (narrow)
Is a Ember Tetra aggressive toward a Goldfish?
Ember Tetra is peaceful and Goldfish is peaceful. Ember Tetra requires tropical water; Goldfish requires cold water. These environments are incompatible.