Glowlight Tetra - Introduction

The Glowlight Tetra is a beautiful freshwater fish. Their are truly pops in a tank with lighting, especially if it's filled with live green aquarium plants and black gravel or substrate. Description Caption Include. Turn on CC for caption. Hemigrammus erythrozonus, commonly known as the glowlight tetra, is a small tropical fish from the Essequibo River, Guyana, South America. It is silver in colour and a bright iridescent orange to red stripe extends from the snout to the base of its tail, the front of the dorsal fin being the same color as the stripe.