that is my question, thanks in advance
email468 Well-Known Member Mar 27, 2008 #4 I use quality pH up and down ... specifically these: General Hydroponics Liquid Pro pH Down or Up from 4 hydroponics.com by Growco Indoor Garden Supply and I recommend using good quality pH up and down especially after reading this thread... https://www.rollitup.org/hydroponics-aeroponics/37836-white-slime-my-roots-airstones.html (if you don't want to read it all - the end of the story is white slime and rotten roots were being caused by shitty pH up and/or down).
I use quality pH up and down ... specifically these: General Hydroponics Liquid Pro pH Down or Up from 4 hydroponics.com by Growco Indoor Garden Supply and I recommend using good quality pH up and down especially after reading this thread... https://www.rollitup.org/hydroponics-aeroponics/37836-white-slime-my-roots-airstones.html (if you don't want to read it all - the end of the story is white slime and rotten roots were being caused by shitty pH up and/or down).
email468 Well-Known Member Mar 27, 2008 #7 green_is_good said: does it ever expire, up and down? Click to expand... damn good question - i don't know.
green_is_good said: does it ever expire, up and down? Click to expand... damn good question - i don't know.
malachi Well-Known Member Mar 27, 2008 #8 as far as I know it doesn't have one. probably won,t last a decade but ain't no date on them