Any idea what this red substance is? It is blowing my mind! 
We started a new grow last week, and when I looked in on day 4 the red substance shown in the pictures was there. I looked at all of the nutrient bottles and they were all fine. It’s become a great mystery in our house. 
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It happened to mine I just cleaned it off with rubbing alcohol and I think it showed once more and that was it @MileHighPapers
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@MileHighPapers I’m laughing so hard. I was just questioning that this morning. I have zero clue to what it is. It appeared during my last grow too. I always thought it was coming from the bottles.
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It is nutes something happens to me in the weirdest places
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Hey @MileHighPapers,
That spectrum looks off to me, can you please put a ticket into support@grobo.ca so we can get you straightened out? I’d love to help…
Stephen
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