Thank you Mach. I read that Fulbendazole is a good one in a post to Aquatic Plant Digest by a rainbowfish breeder in Australia. It's good to know that there is a source in US. Tomoko ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@listbox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@listbox.com.