Available as Droncit (veterinary clinics as anthelmintic for cats and dogs), Prazipro (nearby USA petstores and online sites), Medi-Worm (Goldfish Connection; US location), Goldfish Utopia, PondRx, and Pet Mountain. Dosage courtesy of Thegab.org: Day 1 -- remove carbon, perform water change with vacuuming, and add Prazi to tank Day 2 -- add Prazi