AlienBait said:If you are growing in soil, it will probably be fine. If you are growing Hydro, then it will cause problems. Since this is in the hydro section I will assume you are using Hydro.
Here is what will happen: the vinegar will only lower the PH for 12-24 hours then the PH will shoot up again. So the next day you will add more and more. As you do so, a bunch of white slime will develop in your reservoir and it will be even harder to control the PH and you will go through a bunch of vinegar.
I strongly recommend that you get some proper PH-down made for hydroponics and save yourself the headache.
the_riz said:rockwool cubes are alkaline based so youll want to keep it nicely acidic
KADE said:Wrong. =)
Rockwool cubes should be prepared before use... no one does it.. and that is why they think they are alkaline. The process of making rockwool will leave some residual lime in the fibers... but if prepared rockwool will never effect ph values.
the_riz said:Ok... so, preparing them before use? as in soaking them in some more acidic water or something along those lines? meaning that if this is not done, as you said "no one does it.." they will affect the ph on the alkaline side of the scale. meaning technically they are an alkaline influence on the PH level so what i said was correct? or am i still wrong