Grow Talk

[moondoggy]

The Safety Data Sheet from my CO2 tank supply company, under Physical and Chemical Properties …says the pH is 3.7. Should I adjust my feeding schedule’s pH to account for the CO2 being a pH 3.7?

Does this mean the plant is abosrbing 3.7 pH similar to how it does by foliar feeding with absorbing water and nutrients?

• This discussion was modified 6 months, 1 week ago by  moondoggy.

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Discussion

[melonfarmer]

I don’t know this for a fact, but I would imagine that’s the pH of the liquid CO2, it even says carbonic acid on the label. When you dilute it in the air to 1000 parts per million it’s 1000 times more dilute.

I’ve never heard of anyone pH’ing their air but now I’m kind of curious lol

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[jmystro]

Don’t inject CO2 into a nutrient reservoir and you’ll be fine. CO2 in the air will not affect the pH of a reservoir unless you’re pumping high CO2 grow room air into the reservoir. Pumping CO2 into your reservoir will create carbonic acid. Carbonic acid helped erode the limestone that created the Grand Canyon. Carbon, like silica can create bonds on 4 sides. Carbon is reactive and allows structures to build in a reservoir like sludge.

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