It can be the beginnning of it.
White spot is also known as ich. For me, I got a bottle of Mardel Coppersafe from local LFSes (Singapore), and dosed the whole tank for the instructed duration. No activated carbon, no isolation of fishes since ich affects the whole tank.
Raising the temperature also helps. Search around the net for info.
http://badmanstropicalfish.com/articles/article17.html is a good example, though there are many variations to how to cure the disease.
BTW, topic should be in "Fish Care"![]()
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