Simply Koi and More Koi

How many species of parasite are there that prey on koi (carp) or fresh water fish in general, I ask as I watched a youtube video saying there are 9 species of parasite that target koi.

hi Russ
sorry about the delay just back from a weekend away mate (no internet)

never really sat down and thought about it, actually there are not that many true parasites for instance both flukes and trich are not a true parasite as denoted as something the feeds from the life blood of the host

but that said I would say there are more than 9 when I get a moment ill try and list them
dunc

Thanks Duncan.