Compatibility Overview
Ember Tetra and Rainbow Shark can potentially coexist, but the combination requires careful attention. Some combination of water parameter differences, size mismatch, or temperament issues make this pair challenging. A larger tank (minimum 75 gallons), dense planting, and close monitoring are essential.
| Factor | Ember Tetra | Rainbow Shark | Verdict |
|---|---|---|---|
| Temperature | 73–84°F | 72–79°F | ✅ 73–79°F |
| pH Range | 5.5–7.0 | 6.5–7.5 | ⚠️ 6.5–7.0 (narrow) |
| Temperament | peaceful | semi | ⚠️ Monitor |
| Adult Size | 0.8 in | 6 in | ❌ 8× difference |
| Min. Group | 8+ | 1+ | See below |
| Min. Tank Size | 75 gallons (for both species) | — | |
✅ Compatibility Positives
⚠️ Caution Points
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.
Rainbow Shark — Epalzeorhynchos frenatum
Active bottom dweller that becomes territorial at maturity. One per tank; avoid other shark-like or bottom-dwelling species.
Frequently Asked Questions
Can Ember Tetra live with Rainbow Shark?
With significant caution and a larger tank. Ember Tetra and Rainbow Shark can potentially coexist, but the combination requires careful attention. Some combination of water parameter differences, size mismatch, or temperament issues make this pair challenging. A larger tank (minimum 75 gallons), dense planting, and close monitoring are essential.
What tank size do I need for Ember Tetra and Rainbow Shark together?
A minimum of 75 gallons is recommended for keeping Ember Tetra and Rainbow Shark together. A larger tank improves water stability and reduces territorial conflict.
What temperature suits both Ember Tetra and Rainbow Shark?
73–79°F
Is a Ember Tetra aggressive toward a Rainbow Shark?
Ember Tetra is peaceful and Rainbow Shark is semi. Limited pH overlap (6.5–7.0) — maintain pH carefully within this narrow window.