sorry about your losses. Yeah you have to read directions really well. I do not like dosing anything unless I have to. I would rather be a little low than over dose and be to high. My buffer says to add a tablespoon to at least a cup of water for 40 gallons. So for my 36 gallon I dissolve a little less than a spoon into a cut of
ro water.
imo the salinity swings is what killed everything. And if you didn't let the saltwater mix for long that would have done it too. Salt is caustic meaning it burns. Until out is fully dissolved. I keep a 32 gallon trash can mixing at all times. When I do a water change I replace the water used and add salt. Then by the next week it is completely dissolved. And I add a little extra salt so the salinity is higher and the day before my change I add
ro water to lower it back down some to where it needs to be