I'm having problems with my bath salts. First, my color won't stay. Now, my FO is settling to the bottom of the tube. What's going on? Is this the norm? What the heck am I doing wrong? OK, here is the recipe I used. 4 oz. Dead sea salt, course 2 oz. Dead sea salt, fine 2 oz. Citric acid 8 oz. Epsom salt .25 oz. FO Coloring