I bottled 60 bottles 48hrs ago for the first time I'm using carbonation tabs, I used Muntons 4 tabs per bottle and there are particles floating in all the bottles.
wont take long to dissolve, but the c02 is from the yeast eating the sugar. That takes a while, and then the c02 needs to be forceably reabsorbed into your beer (carbonating it.) Depending on the beer, this takes around 2-3 weeks to finish properly. Not what you wanted to hear, I know. Try to be patient.