soil lime mix help

so I got a 25.4 cm x 23.2 cm pot with fox farm ocean forest.my question is how many tablespoons of pulverized lime do I mix in to keep a ph of around 6.5.any help please

I use a tbsp per gallon mix it in we'll and have not had a ph problem since. Don't breathe that shit in though.

thanks for the quik reply man