Mike I wasn't trying to duck your question in my previous post. I'm attaching a picture of some pallets of Diamond Crystal Solar salt that were outside one of the greenhouses at Nisei Koi Farm. (You can see the blue bags on the right of photo where the plastic is torn off) Mat or Ross one was telling me they use this as a first treatment for certain parasites when the koi come out of the mud ponds IIRC. I can't remember which one specifically now, but they obviously feel it has some value. Doc Johnson makes it sound like salt is the miracle cure for many of the common ciliated parasites including:............ Ichthyophthirius multifilis (Ich), Chilodinella, Costia, Scyphidia, Epistylis, and Trichodina (although some Japanese forms require up to .6% salt). Is the good doctor out of date or simply full of it, I don't know.
I do know that Mark Bodycott told me he was treating his new shipment of koi with salt. I also know that I made positive identification of Trichodina, Costia, and Ich this past year. I was able to kill all three with salt to .5%. I confirmed this with repeated microscope examination throughout and after the treatment. Are you suggesting that salt is ineffective against these three parasites? I don't claim to have all the answers. I am trying to learn and that is why I ask so many questions. I hope I have answered yours. I would like to hear from anyone that feels salt is totally worthless to kill parasites. I have no personal knowledge as to its effectiveness against sleeping sickness.
Regards,
Mitch