With ich, you should have time. It is not an emergency situation like with velvet or brook. The white spots you are seeing on the fish should remain 3-7 days before the trophonts drop off. Some people come to the mistaken conclusion that ich never goes away because they constantly see white spots on their fish. It is important to note the exact location of the white spots and see if those go away after 3-7 days; to confirm it is ich. Because new white spots often continue to develop near where the old ones were. Also, you can differentiate ich from sand on a fish this way: sand will appear on the surface of the skin, often dangling. Ich trophonts burrow under the epithelium (outer skin layer) and thus, that is where the excess mucous (white spots) form.
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