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The pH scale is a measure that describes the relative acidity or alkalinity of a solution or medium
Gives your plants a micro-climate zone allowing you to grow crops that are not hardy in your planting zone
Digital Sugar Refractometer for general purpose with automatic temperature compensation (ATC)
In cooler or drier conditions
Pargro Slab, 9.5" x 8" x 4", case of 16 books-&-videos The pH scale is aPargro is lightweight stone wool made from basalt rock. Its a highly uniform substrate thats pathogen, disease, and seed free, offering consistent plant growth. Stone wool is inert, so it will not add or hold back any nutrients, giving you complete control over your plants. Pargro media has rapid water distribution and excellent re saturation capabilities, making it easy to use. The Pargro family of products are made in the most popular sizes that
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