Ph up and down is a must have along with a good ph meter. What meter did you use to check the soil? What was your ph lvl in the water you used if you were able to check it?
Here is a link for some newbie tools
https://www.autoflower.org/f44/newbie-tools-what-needed-why-come-contrbute-7445.html
Must - got to have it in order to have a successful grow.
Occasional - this item should be included and will be used most of the time.
Seldom - this item may provide a limited use but may or may not be very important when it is.
Specialization - Will add to the ease of your grow and allow you to free yourself up more but are not critical to use.
and a link on people who use/used mg at AFN
https://www.autoflower.org/f5/miracle-gro-underrated-7338.html
I'll check back and welcome to AFN smokeandlift