I use 2 teaspoons per gallon (fully saturated) and dose around 50-60 ml of kalk in a 50 gallon sps dominated tank (15 or so frags). So definitely something wrong here.
But after reading other posts maybe my tank doesn’t absorb that much alk.
$50 met near Downey or electronic payment to hold.
When I first bought it it had white specks but under my high white light it seems that they’ve disappeared.