Hi, I bought the dry ferts Mono Potassium Phosphate, Potassium Sulfate, Potassium Nitrate, and Plantex CSM+B. I have a 55 gallon tank that I am going to begin planting, thats why i bought these. I'm not really sure how to mix them other than Mono Potassium Phosphate, Potassium Sulfate, and...