:bawling:well about 3 mos ago I started using ocean pure salt mix because it was on sale.I switched from instant ocean since then I have developed a algea problem I do not want to put the blame on salt mix but I`ve ran out of options. anyone else have issues I do notice small brown specs in salt before mixing that appear to be small pieces of gravel is this normal thanks for your respo:bawling:nce sea monster.