I have been treating my new baby flowerhorn for ich with kordon rid ich plus for a total of 13 days now. The ich was gone in 3-5 days except for one spot on his tail that I've been waiting for it to disappear... I like to treat at least a week after all signs of ich are gone. He has been doing beautifully and no new spots have appeared since the last "real" spot of ich fell off. Yet that one spot won't go away? I'm beginning to think it isn't ich? It is very small and I can't get a good picture of it... I'm thinking that it may just be non pathogenic and will clear in time. Is it possible for a single spot of ich to last more than 10 days without maturing? I believe that spot was there between the second or third day. Especially since the other spots of ich fell off relatively quickly? Should I continue treatment? Thanks for any advice.