Thanks very much Ken, and everyone else who has responded so quickly . I love this group !!! I do have one more question though - one of my texts say that sometimes the treatment of nematodes can be worse than the disease and the purgative effect of the medication can cause other secondary infections and tissue damage ( caused by the hooked head section of the worms ( the scolex if I remember rightly )). When you treated your fish did they go straight back onto normal food or did you follow up with some antibiotic in case of secondaty infections ? Regards, Simon Voorwinde ========================================================= svavev@hunterlink.net.au http://thecichlidtank.cjb.net ========================================================= ------------------------------------------------------------------------- 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. Search http://altavista.digital.com for "Apistogramma Mailing List Archives"!