How to Identify Gold Tetra

To identify Gold Tetra (Hemigrammus rodwayi), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

The body is generally silvery-gold to brassy-yellow, often with an iridescent sheen that can appear more golden under certain lighting or water conditions. A faint, dark lateral line may be present, sometimes terminating in a small, dark spot at the caudal peduncle. The fins are typically hyaline (clear) or slightly yellowish.

Scale type

cycloid

Mouth position

terminal

Distinctive features

Iridescent golden/brassy sheen on the body, Small adipose fin, Typical characin body plan

Dorsal fin

Single, relatively short dorsal fin located mid-body.

Tail fin

Forked caudal fin.

Pectoral fin

Paired pectoral fins, typically clear.

Distinctive fins

Presence of a small, fleshy adipose fin between the dorsal and caudal fins, characteristic of characins.

Identification Tips

1. 1

   Coloration

   Look for the characteristic golden or brassy iridescence, which can vary in intensity depending on the fish's health, diet, and environment. This sheen is often more pronounced than in many other small tetras.

2. 2

   Size and Shape

   Typically grows up to 4-5 cm (1.6-2 inches) in total length. It has a classic tetra body shape: laterally compressed, somewhat elongated, with a small adipose fin.

3. 3

   Absence of prominent markings

   Unlike many other tetras, H. rodwayi generally lacks strong black spots, stripes, or fin coloration, relying instead on its overall golden body sheen for identification.

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