how can i fix ph related spotting?

i water with fiji ph 7.5 and my soil type may be slightly acidic.

the only thing i'll ever use miricle grow for is to balance ph in a quick fix. if u use sum oystershell of dolimite u probalbly wont get any ph problems

If you are using a good soil, your ph will have a buffer in it. Water with distilled water so that the buffer can easily auto ph the added water for you.

When you add water with a lot of "stuff" (ppm's) in it, it makes it hard for the buffer to buffer.

Good soil, and good water = good growing

If you are using bad soil, well then make sure you ph your water before you feed/water. Also if that is not helping, Limestone will help bring your soil up (they have it almost all garden stores)

best of luck mate <3