please save me

ok so, my plant has been doing well. I’m flower I’m at the 4th week right now and I just checked the runoff and it’s acidic as hell. Do I just flush it while the soil is still wet? Or during next feeding should I just ph water to a 7.5 or 8 to try and balance out everything . Please help idk...

Ok I'm growing organic out the ground I fuckn dug for a beek strait like two huge grave so I got 1 6foot long 3 ffeet deep and 4 food wide how many plants think I can fit I was going to give em about 15inches a piece from each other but hey I didn't go crazy help me please oh ya will my clones...