Hindsight is always 20/20..lol Next time crush well, maybe use a couple of spoons to crush..?? I use a mortar & pestle when using tablets, then add with a little water or wine to dissolve, then mix well and let blend into your wine. You should be fine.
Take tablets and crush well, then stir into a small volume of water. 1/4 cup.
Then pour into the carboy while mixing all together. You should be fine with what you have, it will dissolve.