multicolored neon small fish in aquarium on a black background. fish called ternetia caramel or black tetra, fluorescent

aquarium fish tetra black background neon multicolored headband water underwater pet glo swim ternesia ultraviolet care aquatic coral exotic theme tropical animal blue bright fancy caramel fauna green nature orange pink fin group small sea artificial aqua freshwater color colourful colours fluorescent glofish light ternation thorna