Wild / standard
A variant of Neon tetra (Paracheirodon innesi)

Representative Neon tetraphoto — a dedicated image of this exact morph isn't available yet.
The classic Paracheirodon innesi: an electric blue-green horizontal stripe with a red band on the rear half. The standard form, mostly farm-bred today.
Keeper tips for this variant
Keep in shoals of 8+ in soft, slightly acidic water; quarantine new stock since farmed neons are prone to neon tetra disease (Microsporidia).