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Extraction Fan & Carbon Filter Ducting Kit Odour Hydroponics Grow Tents Smell

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Best way to sterilize coco coir?

So I've been growing without problems for the last 2 years and all of the sudden I can't get past the seedling stage because they damp off. I flushed the coco with 1ml per gallon of 35% peroxide and 2ppm of chlorine and still getting damp off. Should I just throw the coco out? I've never dealt with anything like this I had no idea weed could be this fragile.


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