Carrie, many of the people who answer you at Koishack are also answering you here. Koishack is like all other boards in that you will get different answers depending on who you ask, or what information you provide. You were asked questions on each of the multiple threads you started on Koishack that you did not provide answers to. You asked long complicated questions and also made some very confusing statements that you were asked to clarify. Most of the questions we had for you went unanswered. How can we help if you don't follow-up on your original threads?
One question I had I'll re-ask here. You stated you found multiple parasites on a dead fish. I asked how sure you were of your parasite identification because parasites do not stay on dead fish. Normally when a fish dies, parasites leave. It is nearly impossible to find parasites on a dead fish. I asked the question not to try to second-guess you, but because I am afraid you may be bombarding the fish with chemicals to treat parasitea that may not exist. Heavy slime coats are not always the result of parasites, but also can occur anytime a koi's skin is irritated such as from chemicals.