Ph problem

oh having a hell of a time getting my Ph down to 7.0 or lower.

Using what? GH brand ph up and down works great for me.

I live in a very rural area. I would need a natural fix.

Wait, is this for soil or hydro?

"Note: Blood Meal, Dried Blood, Guanos, Kelp Meal, Cotton Seed Meal, Peat Moss,
Sulfur and fish meal are all acidic and can bring your ph down, so if you add these please monitor your ph when using those.

Note: Bone Meal, Rock Phosphate, Wood Ashes pretty much all ashes, Shellfish Compost and Crab Meal are all alkaline and can make your ph go up, so if you add any of these please monitor your ph."

Info gathered from http://www.icmag.com/ic/showthread.php?t=11688

i use aluminum sulfate. available at any garden center.