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This 128 page reference book gives you a step-by-step guide to achieving 20 to 50 percent higher yields with rockwool growing media.
Specific growing tips from professional growers are at your disposal.
Also outlines how to monitor pH and EC of the rockwool nutrients.
A must-have for Rockwool users.
Gardening Indoors with Rockwool: |
$14.95 |
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