Um, you are aware, are you not, that the Pleiades is an open cluster of O-type blue-white stars, still so young that they're visibly near their birth-nebula? Best guess for current age, based on spectral information, is around a billion years, or about four billion years younger than our own sun. It's quite possible they haven't yet developed planetary systems, if they're going to at all (Vega's older, and still surrounded by a debris cloud visible in infrared); assuming that any planets existed, and had existed for long enough that complex life could evolve there, it seems unlikely in the extreme that such life would find a comparatively cold star like ours a candidate for colonization, particularly on a world so far from its primary that water is a liquid! That would be much akin to our race bending its collective energy on establishing a beachhead on the (hypothetical, for purposes of illustration) seventh planet of the red giant Betelgeuse.
Cute idea, but Wrong-Planet imagery aside, I'm afraid we're all too human, much though we might wish it otherwise sometimes...
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Sodium is a metal that reacts explosively when exposed to water. Chlorine is a gas that'll kill you dead in moments. Together they make my fries taste good.