Can I use industrial grade rockwool for my hydroponic medium?

Can I use industrial grade rockwool for my hydroponic medium? Most industrial insulation contains a fire retardant chemical that severly restricts growth and will cripple your plants. The only option is horticutural grade, grodan and oasis for example. 022006

Can I use industrial grade rockwool for my hydroponic medium?

Can I use industrial grade rockwool for my hydroponic medium? Most industrial insulation contains a fire retardant chemical that severly restricts growth and will cripple your plants. The only option is horticutural grade, grodan and oasis for example.
2006-02-06 16:50

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