The fish have never shown signs of intestinal worms or flukes. The TTM was mainly to ensure they aren't transporting ich. Is it worth treating them with Prazi? It's two ocellaris clowns and an orange back fairy wrasse(Cirrhilabrus aurantidorsalis). The clowns have been with me for over 7 years and the wrasse for 3 years. I'd hate to cause undue stress and lose any of them but I also want to start the 225 with a clean slate.