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ph-
- Thread starter didi7
- Start date
S
Space Ghost
I;d just use lemon juice or vinigar
question: why do you need to lower your pH from 8.4 to 6.3?
that should be the job of your nutes if you are in hydro, in soil the dirt should buffer pH.
Nobody can tell you how much you will pH need without these parameters:
-whats in your water
-whats your pH down and what concentration
I don't know much people that know whats in their water unless they use RO water, also pH is a logarythmic scale, you need way more to lower the pH from 6 to 5 than from 7 to 6.
Anyways, the important question remains: Why do you need to lower the pH that much?
pH adjustment is only for small corrections
that should be the job of your nutes if you are in hydro, in soil the dirt should buffer pH.
Nobody can tell you how much you will pH need without these parameters:
-whats in your water
-whats your pH down and what concentration
I don't know much people that know whats in their water unless they use RO water, also pH is a logarythmic scale, you need way more to lower the pH from 6 to 5 than from 7 to 6.
Anyways, the important question remains: Why do you need to lower the pH that much?
pH adjustment is only for small corrections
duder i got some madfarmer lowdown {ph down} for 10$ us from my local hydro shop
could be pool muratic acid i was told that could be used be very very catreful hence why i bought the ph down from the shopdidi7 said:
right on no chemist here lollemonade said:
sulfuric acid is fine for lowering the ph. I think it is called qual. Ask for battery acid from the auto parts store. Be very careful handling. You will find that you need very little to lower your water ph. You may need to make a stock because it needs diluting so much. Add maybe 1 teaspoon acid to a gallon of water. Then, add an ounce or two of this stock to your nutrient solution. You will have to titrate/experiment on how much to add. This may take many tries before you have your "recipe" for the future.
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G
Guest
you guys and gals got to purchase some ph down or ph up along with your set of nutes. its a must, dont skimp on the correct ph for your girls, they cant get all that expensive nutes if the ph is to high or too low.Get some gh ph down and watch the plants take off after there water is perfect.
G
Guest
8.4 ph is way too high even if ure timer is set on TIMER.
Lots of acids to choose from
Lots of acids to choose from
Sulfuric acid is probably the best all around choice to lower the ph. It contains sulfur which plants need. It is also considered neutral in that it does not promote growth only changes the chemistry in the plant like the formation of proteins. Phosphoric acid is less desirable because you would add phosphorus and you might not need more. Nitric acid could be used but you would be adding more nitrogen. Hydrochloric acid is a good choice and is also considered neutral but adds chlorine which plants require very little of of.
Lots of acids to choose from
Sulfuric acid is probably the best all around choice to lower the ph. It contains sulfur which plants need. It is also considered neutral in that it does not promote growth only changes the chemistry in the plant like the formation of proteins. Phosphoric acid is less desirable because you would add phosphorus and you might not need more. Nitric acid could be used but you would be adding more nitrogen. Hydrochloric acid is a good choice and is also considered neutral but adds chlorine which plants require very little of of.
