All Age Old COMMERCIAL products are part of a larger formula/system. Multiple products are required, including Calcium Nitrate. All Age Old COMMERCIAL nutrients and supplements should only be purchased after consultation and training on the full Age Old COMMERCIAL line. If you are a licensed commercial grower, please contact Hydrofarm’s Commercial team. Contact Us
Calcium Nitrate is designed to be a mineral additive used with Age Old Commercial Grow and Age Old Commercial Bloom. The high calcium-to-nitrogen ratio helps deliver the right amount of calcium to plants without delivering too much nitrogen.
