If your tap water has more than 200 ppm (or calcium level is more than 70 ppm), use Flora Micro Hard Water. If the calcium level in your water is more than 30 to 50 ppm, you can mix our original Flora Micro with Flora Micro Hard Water to create a perfect micro blend for your plants.
1 Gallon, 1 Quart, 2.5 Gallon, 6 Gallon
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Cloning & Seed Starting