how do i raise the ppm

maybe a silly question but i left my water to sit for 24 hrs put the recomended dose of nutes in it but my ppm is only 650 and ph5.9

Add more nutrients.

won't this cause nute burn

i am useing cana a+b and cana bloom should i just put more a+b in as i am 4 days into flower

It will only burn the plant if your ppm is too high

ok cheers for all the help

i would get a ppm meter to be safe, it will save you headaches

got one m8

but after putting the nutes in it was only reading 650 ppm and that was with 10ml per 10l of water of a+b and bloom