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Stonewool Block
Fully pressure washable and easy to clean
• Blade free - trims using gentle friction to preserve natural contours of plant material
a natural source of potassium mined from ancient sea beds in the American southwest
Dyna-Gro pH-Down 1 Qt. hydro-systems Stonewool BlockpH Up and pH Down are supplements used to adjust your water and nutrient solutions to the proper pH range for plants. Most plants prefer a pH range of 6. 2 to 6. 8. pH levels that are too low or too high can result in release of or tying up of minerals in soils that can lead to toxic levels or deficient levels of various elements.
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