ph meter?

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try your local aquarium shop,they will point you in the right direction if they havnt got them theirselves,or simply look up an hydroponic store close too you :)
 
Pool and spa supply places also have them. The ph meter used for soil (which is cheap) is different than one used for water. Make sure you get the correct one. Buy calibration solution when you buy the meter.
 
The Hemp Goddess said:
Pool and spa supply places also have them. The ph meter used for soil (which is cheap) is different than one used for water. Make sure you get the correct one. Buy calibration solution when you buy the meter.
which one is more critical or do i need both?
 
i'd just get the one for tha water and mixing your nutes.get a good one tho.they ain't cheap either.
 

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