I used the calculator above for my Mg. My current is 1260, I want to raise it to 1350 in my water volume of 200g. I tried it with using the Epsom salt (an epsom is an epsom??). It's saying to add 27oz split into 2 doses. Using Randy's recipe it says like 290 tsp and to add it all at once in a high flow area.

1. both those amounts sound like one helluva lot to me?

2. Is all at once ok?

3. Is Epsom the same by brands?


Thanks

Rob