Compatibility Overview
Angelfish and Chili Rasbora 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 | Chili Rasbora | Verdict |
|---|---|---|---|
| Temperature | 74–84°F | 68–82°F | ✅ 74–82°F |
| pH Range | 6.0–7.5 | 4.0–7.0 | ✅ 6.0–7.0 |
| Temperament | semi | peaceful | ⚠️ Monitor |
| Adult Size | 6 in | 0.8 in | ❌ 8× difference |
| Min. Group | 1+ | 8+ | See below |
| Min. Tank Size | 75 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.
Chili Rasbora — Boraras brigittae
Vivid red nano fish from Borneo blackwater habitats. Extremely small — only safe with fish too small to swallow them.
Frequently Asked Questions
Can Angelfish live with Chili Rasbora?
Generally not recommended. Angelfish and Chili Rasbora 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 Chili Rasbora together?
A minimum of 75 gallons is recommended for keeping Angelfish and Chili Rasbora together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Angelfish and Chili Rasbora?
74–82°F
Is a Angelfish aggressive toward a Chili Rasbora?
Angelfish is semi and Chili Rasbora is peaceful. Minor aggression possible from the semi-aggressive species; provide hiding spots.