Chances are it is fine. GSP is tough to kill even if you are trying to kill it. Give it a few more days and it will probably show signs of life. If it is still purple it is good.
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210 Gallon slowly gaining population.
Foxface, Naso, Coral Beauty, 2 Clowns, 2 Chromis, Orange Anthias, and Striped Goby.
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