PH , EC & Flushing

[Kushboi]

Hey guyz new to growing and just a few questions Wot is Ph & Ec used for what does it do to your plant also are you suppose to flush weekly to get rid of salts also when do you change your PH and Ec? Thank You Kushboi

 

[PitViper]

start with this bro, read it a couple times...do your homework.
How to Grow Marijuana Everything You Need to Know
pH - Wikipedia, the free encyclopedia
Electrical conductivity meter - Wikipedia, the free encyclopedia
Parts per million (ppm) definition