Just in case the cutesy interplay of upper and lower case letters in the product name didn’t clue you in, we will: CALiMAGic is a CALcium and MAGnesium supplement. This makes the second such product GENERAL HYDROPONICS offers along with CaMg+. The product positions itself as a way to prevent secondary nutrient deficiencies, so by definition, these guys envision you buying a base fertilizer, a nutrient additive solution AND then this product. If you’ve got enough patience to use the minimum of three different product bottles, then maybe this is for you. One of the more unique features promised is that it prevents “blossom end rot and tip burn.” It’s also promised to not clog spray lines or drip emitter systems and is safe in reservoirs, when combined with other fertilizers, so apparently there are some unique advantages that might counterbalance the extra clutter of product bottles in your closet.