Glosso Factory Aquarium Plant Fertilizer M, Micro Nutrients for Estimative Index Dosing (16oz)

It has everything except Calcium and Sulfur. I get why it doesn't have calcium as if you have tap water anything higher than 7 then there's probably some in it already, but not sure why there isn't any sulfur.For nano tanks, the dose is 4 drops per gallon. I did the math so you don't have to.WARNING: Do Not Use Regularly in tanks with shrimp, snails, and other crustaceans. The copper in this fertilizer is HARMFUL if not FATAL to them. A few of my shrimp died for this knowledge. On the other hand, I don't have any pest snail problems anymore!This product is great for when you see certain deficiencies in your plants. Ever since I dosed it in my tanks along with my regular routine of Nitrogen, Phosphorus, and Potassium, my rare Anubias species has been growing steadily without any signs of deficiencies.