[kwirky]

I've got a bucket of oceanpure pro I'm using while I wait for reefer's best to come to Canada. Never had problems other than insanely high Mg levels.

the temperature I mixed my salt at made a difference. If I mixed salt up then warmed it to the required temperature it would precipitate alk. I was having calcium/alk problems at one point but I eventually figured out it was my own human error and the fact I was dosing home made 2 part at a single time during the day.

Dosing both chemicals all at once caused a great deal of it to precipitate and led to imballances. I found if I spread the two chemicals out to two doses (one morning, one evening) I had more reliable dosing. And I dosed the calcium and alk portions 30 minutes apart to prevent them from reacting with each other and preciptating. Plus I find the regiment of hand dosing 2 part introduced all sorts of little errors that made it hard to figure out what exactly was the cause of errors when they happened. I could never do it like clockwork.