BIO-PURE FD is the world's cleanest freeze-dried fish food available today. Pharmaceutical freeze-drying techniques allow us to give you a product as close to fresh as humanly possible. Expect a texture and taste not previously available in a freeze-dried food. If you're looking for an excellent daily diet or treat for your smaller fresh or saltwater fish, look no further. This product is also an excellent food to administer medications with and can be used after medicating to cleanse the fishes digestive tract. BIO-PURE FD Daphnia, an excellent choice from the quality leader, Hikari!!