Platty

Lava rock grit in soil mix

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Hi everyone,

Going to split and pot up some Mexican pings soon and was wondering if anyone uses lava rock grit in their mix and if so where do you get it from? I don't need much. 1 litre would do it. 

Thanks

Edited by Platty

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Hi Platty, i'm not a pings expert but i kept a P. elizabethiae in pure lava (crushed) rock and it was fine. Here in Italy many growers use this substrate or the tufa brick. With the lava rock there will not any issue with fungus gnat larvae

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