Best way to control Ph?

Home Slice

Active Member
Growing indoors with soil, plants are about 1 month old.

My tap water is too alkaline (somewhere around 8.0) and is throwing the Ph too high, and my plants are showing some nutrient problems.

Is there anything I can buy that will *quickly* stabilize the soil Ph, and keep it there for the season?

I know about Dolomite Lime to RAISE the Ph, but does this work if the soil is too alkaline?, will it bring it back to 7.0 and STAY there, or will it keep raising it?

What is the best thing to use to lower the Ph and keep it stable?

So far Ive tried Lemons, which works well mixed with water. Could I just keep mixing lemons with the tap water to stabilize the water's Ph, and keep feeding it to them until harvest or no?
 

regrets

Well-Known Member
techincally yes, but you will need a ph tester to make sure you are not giving your ladies water you just dropped to 4 ph. It is easier to just get some ph down though, so you don't have to waste a fresh lemon everytime you water. while your at it get som ph up because you are gonna fuck up with the ph down and need to fix that. Either way you will need a ph tester.
 

Home Slice

Active Member
I have a Ph meter, and it only takes like one lemon per gallon to instantly lower the tap water Ph to about 6.5

Doesnt Ph up and down take days to start changing the water?

Is there any side effects to using lemons for Ph control from start to finish?
 

NewGrowth

Well-Known Member
Lemon will work or some ph down for hydro some sulfur and a soil with a high peat content will work well too.
 

regrets

Well-Known Member
no, ph up and down does not take days, it is pretty instantaneous. It shouldn't take an entire lemon just to bring down one gallon of water. Assuming you mean that it doesn't take more than one lemon at a time that still adds up over time, for $10 worth of ph down you can lower the ph of hundreds of gallons of water, and you don't have to buy a dozen lemons everytime you go shopping.
 

Home Slice

Active Member
Is there a specific type of Ph down/up that I should look for? (Like a certain chemical) or are they all the same?

I have some "ph minus" (sodium dihydrogen phosphate?) for pond water, but I heard anything with sodium will kill plants?
 
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