Ember Tetra Identification Guide
Identify the tiny Ember Tetra by its glowing orange-red body and lack of dark markings or stripes.
Read the full Ember Tetra encyclopedia entry →
Key identification features
- Very small, slender, torpedo-shaped body rarely exceeding 0.8 inches (2 cm)
- Vivid, glowing orange to red-orange coloration over the entire body
- Translucent fins that pick up a light reddish tint, without bold black edging
- No lateral stripe, spots, or shoulder blotch, giving a clean, unmarked appearance
- Large dark eye that stands out against the bright body color
- Slightly deeper body in females, especially when carrying eggs
Common look-alikes
- Red Phantom Tetra is larger with a distinct dark shoulder spot and translucent-red fins, unlike the Ember's uniformly glowing, unmarked body.
- Fire Tetra (von Rio Tetra) is bigger, has a black-edged dorsal fin, and a duller reddish body rather than the Ember's intense orange glow.
- Juvenile Serpae Tetra can look superficially reddish but shows a black shoulder blotch that Embers never have.
Where you'll see one
Native to shallow, slow-moving, tannin-stained tributaries of the Araguaia River basin in central Brazil, where it schools in dense numbers among submerged leaf litter and fine root tangles in soft, acidic water.
Frequently asked questions
How do I tell an Ember Tetra from a young Serpae Tetra?
Look for markings: Ember Tetras are plain, glowing orange with no black shoulder spot, while even young Serpae Tetras already show a dark comma-shaped blotch near the gill.
What is the quickest way to recognize an Ember Tetra in a mixed tank?
Its very small size combined with an unbroken, glowing orange-red body and clear fins with no stripes or spots make it easy to pick out.