Has anyone out there used a product called Marine-Max disease prevention and life extension by Tropical Science Biolabs? It claims to "formulate 5 different strings of specially cultivated bacteria that protect against the full spectrum of common aquatic diseases-all naturally". It also contains a unique formulation of genetic RNA and DNA combined with 17 anti-oxidants to insure cellular strength and boost natural disease immunity. If this stuff does what it say , awesome. Made to be used as a preventive.