Blue Flash Glass Tetra Care Guide
Heterocharax vigulatus · Freshwater Fish
What Blue Flash Glass Tetra look like
Heterocharax vigulatus, commonly known as the Blue Flash Glass Tetra, exhibits a highly translucent, laterally compressed body that typically reaches a maximum adult size of approximately 1.5 to 2 inches (4 to 5 cm). This species is characterized by its striking electric blue iridescence, which is most pronounced along the lateral line and dorsal area, creating a ghostly appearance that enhances its visibility in the aquatic environment. The fins are delicate and transparent, with the dorsal fin being slightly elongated and the anal fin exhibiting a subtle, rounded shape. Sexual dimorphism is subtle; males tend to display more vibrant coloration and slightly more elongated fins compared to females. Defensive adaptations include its transparency, which provides camouflage among aquatic vegetation and substrate, as well as the ability to school tightly, confusing potential predators. Notably, the internal organs may be partially visible through the body, further contributing to its unique morphology.
Behavior & temperament
The Blue Flash Glass Tetra is a social fish that thrives in small to medium-sized schools, exhibiting a hierarchical social structure where dominant individuals may display more vibrant coloration and assertiveness. This species primarily inhabits the mid to upper water column, often found in densely vegetated areas of slow-moving waters. Breeding behavior is characterized by egg scattering, where females release eggs among plants, and males fertilize them externally. The Blue Flash Glass Tetra is generally peaceful and exhibits a calm temperament, making it suitable for community tanks, although it may display slight territoriality during breeding periods.
Diet & feeding
In the wild, Heterocharax vigulatus is an omnivore, feeding on a varied diet that includes small invertebrates, plant matter, and detritus. In captivity, it thrives on high-quality flake foods, live or frozen foods such as daphnia and brine shrimp, and should also be provided with plant-based supplements to ensure a balanced diet.
Behind the name
Heterocharax (different fin); vigulatus (from Latin, meaning 'to flash' or 'to sparkle').
Plan your tank
Check the numbers before you buy: tank volume, a stocking plan, cycle progress, water changes, and your ongoing care routine.
Keeping Blue Flash Glass Tetra?
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