Humble fish ,
For my own education, I was under the impression that fresh water dip will identify the culprit, ich or valvet as the parasite will leave its host and drop to the bottom of the bucket and can be inspected after visually , without a microscope . This is generally how I identify ich ( never had valvet, I think, touch wood).
I personly use tank transfer method, and fish less display (6 weeks) would you suggest this to be the most effective,.... And I also feed dr d , medicated foods during quarantine ... When I can as most fish don't take to it easly.
Is this a good method or is this even correct?
Some suggest it's almost impossible to have a ich free tank unless you quarantine every piece of coral or rock you add to your display and the best cure is prevention with water quality and husbandry...
I know we are digressing a bit , but would love to have your opinion on the two points..?
Interesting information on the copper effects, I would be interested to read further on that subject.