AQUARIUS Powder Exercise Fitness Sport Isotonic Drink Plain Vitamin – 48g x 5. Use one pouch for one litter of Aquarius (18kcal per 100ml). Contains Vitamin B and Vitamin C. The sports drink Aquarius was launched in April 1983. Its name refers to Aquarius, the eleventh sign of the zodiac. Moreover, in Latin “aqua” means water or liquid, making it the perfect word to suggest the image of an isotonic drink which provides fluid and electrolytes to the body.