I have been using all for reef in ready to dose liquid form. Recently I purchased the powder to mix my own. I followed directions and feel good about the product. However my gallon container I mixed it in was not ideal for daily manual dosing so i decided to pour some into my just emptied AFR container that held the premixed liquid. I have noticed that the dosing cup is crusty almost like salt creep or something. The premade liquid did not do this.
is this normal for the powder formulation?
is this normal for the powder formulation?