TTM is easy, and it works. Just be sure to observe them another few weeks. I made the mistake of not doing that long enough. Prazi is good and can be added twice during the transfers. The next time I quarantine I'm going to add some formalin baths to the protocol and extend the length of quarantine for a total of 8 weeks. I may have chloroquine phosphate (ich shield) on hand just in case I recognize velvet symptoms, but that stuff is expensive! Surely no parasite could sneak through that protocol! Oh and be sure the quarantine tanks are in a separate room from the display.