Retail, wholesale, mail order retail services and electronic shopping retail services connected with the sale of pharmaceutical, medicinal and veterinary preparations and substances, bacterial cultures and preparations other than for medical or veterinary use, products for the purification, treatment and improvement of water quality, nutritional and dietetic products, vitamins, minerals and mineral salts, nutritional, food and health food supplements, snack and muesli bars, feed additives and food supplements for inclusion in animal foodstuffs, plant extracts, prebiotics, microbial preparations and probiotic bacterial formulations and supplements, preparations and substances for use in improving water quality, immune stimulants and disinfectants for maintaining the health of aquatic animals, antibiotic preparations and products relating to the inhibition of the growth of algae