How to Identify GloFish

To identify GloFish (Danio rerio (gentechnisch verändert)), look at these key features.

Physical Characteristics

Body shape

torpedo

Coloration

Artificially vibrant and fluorescent, including red ('Starfire Red'), orange ('Sunburst Orange'), green ('Electric Green'), blue ('Cosmic Blue'), and purple ('Galactic Purple'). These colors are due to the expression of fluorescent protein genes. The underlying body pattern of the zebra danio (horizontal stripes) may still be visible beneath the fluorescent pigmentation in some variants.

Scale type

cycloid

Mouth position

superior

Distinctive features

Genetically engineered fluorescent coloration, Small, slender body, Forked caudal fin, Two pairs of barbels (often reduced or absent in some strains)

Dorsal fin

Single, short-based dorsal fin located mid-body.

Tail fin

Deeply forked caudal fin.

Pectoral fin

Paired pectoral fins, typically clear.

Distinctive fins

All fins are generally clear or take on a translucent version of the body's fluorescent color.

Identification Tips

1. 1

   Coloration

   The most obvious identifying feature is their unnaturally bright, fluorescent coloration (red, orange, green, blue, purple) which glows under specific lighting conditions, especially blue light.

2. 2

   Body Shape

   They retain the torpedo-shaped body and small size (up to 5 cm or 2 inches) characteristic of the zebra danio.

3. 3

   Behavior

   Active, schooling fish that are constantly on the move, similar to their wild counterparts.

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