I wouldn’t use it. It has time released nutrients that are released at unpredictable times in unpredictable amounts. The Lowe’s in my area only carries MG perlite as well. Home Depot sells it without any nutrients at a better price if you live near one. If not, ask a local nursery or greenhouse operator. These guys are almost always happy to give you pointers if not hook you up. They generally order commercially for their supplies, and may have what you need laying around in the way, and sell cheap
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