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Quantity
1
ALL PRICES INCLUDE SHIPPING
Mr Poopy's substrate blend consists of horse poop, coconut coir, vermiculite and gypsum. The manure is ran through a power shredder before being batch mixed with the other ingredients. Each batch is hydrated to field capacity before pasteurizing. Our substrate is ready to use out of the bag, just open and mix w
5.0
31 ratings
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very good substrate for the price
D
Don · October 18, 2026
First of all, the price on this substrate is really good. The bag is thick and reliable. The quality of the substrate is high. But most importantly, the customer service is top tier. It’s actually been a pleasure to interact with MP.