ph problem is soil to low

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pack21

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ive done a runoff the plants the ph was 6.4 retested it after runoff 5.4 need to rise it what is the best way to do this many thanks


the soil is westland mixed with canna terra profesionall soil mix not been feeding at all they have been transfered to bigger pots the ppm reading is 1200 so no need to feed yet watered straight out the tap after ajusting ph 6.4 but run off comes out 5,4 need to raise ph in soil
 
hello Pack21 :)

You will need to buy some PH up, easily found in hydro shops of Ebay etc :aok:

Mix it with your tap water so the PH reads roughly 7.7 then check the run off and it should be around 6.7 but you may have to jiggle the PH around to find the correct level ;)

Personally I would change my soil.
 

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