Calcium+ is our custom mineral blend of "Gypsum" like minerals & PH buffers that we add to bulk substrate, grain spawn and more. It is the most universal additive you can buy. Not only does it naturally raise the PH levels of your growing medium and add beneficial minerals, but it can inhibit mold growth and increase germination percentages in grain spawn.

Features & Includes:

• 2 pound bag of Agriculture Grade Calcium+ Blend
• Perfect ratio of Calcium Sulfate
• Calcium Hydroxide
• Activated Carbon

While there is no exact amount needed when adding to casing, substrate or grain, you can start by adding a 2 tablespoons to 4 quarts of bulk substrate or sprinkle or "dust" your freshly cooling grains with it to improve its germination rates.