Ember Tetra vs Neon Tetra
Two peaceful, colourful shoaling tetras that are beginner favourites. The ember tetra is a tiny glowing-orange nano fish; the neon tetra is the classic red-and-blue schooler. Here's which suits your tank.
The quick verdict
Choose the ember tetra for a smaller, warm-orange fish that's perfect for nano and heavily planted tanks. Choose the neon tetra for the iconic red-and-blue stripe and a slightly larger community tank. Both are gentle, both shoal, and both look best in a decent-sized group.
| Ember tetra | Neon tetra | |
|---|---|---|
| Care level | Easy | Easy |
| Adult size | 2 cm | 3–4 cm |
| Min tank size | 40 L / 10 gal | 54 L / 14 gal |
| Colour | Glowing orange | Red-and-blue stripe |
| Temperament | Peaceful | Peaceful |
| Water | pH 5.5–7.0, 23–28 °C | pH 5.5–7.0, 22–26 °C |
| Shoal size | 8+ | 6+ |
| Best for | Nano / planted tanks | Classic community colour |
Tiny nano glow vs classic schooling stripe
The ember tetra is one of the smallest tetras in the hobby, its warm orange body glowing against greenery — ideal for a nano aquascape where a full shoal fits in a modest footprint. The neon tetra is a little larger and carries the famous neon-blue and red stripe that shimmers when the group schools; it appreciates a bit more open swimming space. Both are soft-water fish that shine over dark substrate with plenty of plants and gentle lighting, and both are happiest and boldest in larger groups.
Which should you keep?
Our pick
Pick the ember tetra for a nano or densely planted tank where its small size and warm glow really work. Pick the neon tetra for a slightly larger community tank and that unmistakable red-and-blue flash. Read the full ember tetra care guide and neon tetra care guide, or browse aquarium setups.
Frequently asked questions
Are ember tetras or neon tetras better for a nano tank?
Ember tetras are the better nano fish. At around 2 cm they are noticeably smaller than neon tetras (3–4 cm), so a small shoal fits comfortably in a well-planted nano tank from about 40 litres. Neons are a touch bigger and appreciate a little more swimming room, so they suit a slightly larger community tank.
Which is more colourful, ember or neon tetra?
It depends on the look you want. Ember tetras are a warm, glowing orange that pops beautifully against green plants and dark substrate. Neon tetras have the iconic red-and-blue stripe that flashes as they school. Both look best in a group of eight or more over dark substrate with subdued lighting.
Can ember tetras and neon tetras live together?
Yes, they make great tankmates. Both are peaceful, soft-water shoaling tetras with overlapping temperature and pH needs. Keep each species in its own group of six or more so they feel secure and show their best colour, and you will have a lively, gentle community.
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