SK, you seem to think you have a pretty big ick...
The appearance of 'white spots' has led many to confuse the 'symptom' with the disease. Let it be said, in no uncertain terms, that the parasite is MICROSCOPIC and the 'white spots' is NOT the parasite, but mucous secreted by the fish. A poor understanding of this disease, its progression, and symptomology, as led to many erroneous conclusions, doubtful treatment suggestions, and needless fish deaths.
Just a little quote from someone who has been around a lot longer than you, and yes with FO.
http://community-2.webtv.net/deflizard/doc/page11.html