How to bring down the PH after overwatering?

[Vash]

Damn, wish I could have gotten here earlier. First, instead of worrying about flushing, I would have let the medium dry out a bit before attempting to correct pH. Probably would have alleviated root rot. Just my opinion.

 

[EL ROBUSTO]

Yeah didn't realize what it was until it was too late, all was well and then one morning bam thought it was a couple other problems but was just running around in circles. Everytime I tried something it just made it worse, by the time I started to dry things out they where done and begging me to put em out of their misery.
Was able to save one clone, growing slow but the new growth looks pretty good no twisting or clawing or yellowing nice and green.