Not sure what you mean by 10:1. You weren't planning on mixing the 2 together were you ?
10:1 is a Magnesium dose for people with calcium reactors ... so you've got me confused
You want to start by testing your tank for a couple days to see how much it uses, and then start dosing while testing daily.
After the first week if you have everything stable you can then back off the testing to weekly and then finally monthly if you like.
I still test weekly
Here's a
BRS Video for you
And
here's where you can look to get an idea about how much to start dosing with
Look halfway down the page for the starting dosages, but I'd recommend you read the whole writeup