These jellies are absolutely stunning! Originating from South America, these jellies were almost unknown before being bred in captivity and studied. As they age, their bells develop a red marbling pattern, hence the name. Fascinatingly, this species also grows long streamer tentacles. Despite their rarity and exotic looks, these jellies are very hardy and easy to keep. Combine that with their highly active and friendly personality, and these jellies are an instant win.