[Coral Hoarder]

okay so up till this point to keep up with dosing iv been using the seachem adatives for alk cal and mag this works well but the only reason i chose this initialy is because i had them laying around from a tank i bought. Well it turns out these products are expensive ! so i chose to swich and got myself some bulk calcium cloride and sodium bicarbonate. so with the calcuim cloride i added 6 cups to 1 galon of watter and it disolved perfectly no problem. them i added 3 cups to start of the sodium bicarbonate well it doesnt look like alot of it has disolved into the watter any tips or tricks forwhat im not doing right ?