What is Reddit's opinion of KETOTEK Digital PH Meter, PH Meter with ATC, Water PH Test Meter with 0.00-16.00ph Measure Range for Drinking Water, Hydroponics, Aquariums, Swimming Pools. High Accuracy 0.01 PH Pen Tester…?

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Get this. If you don't ph the water with your nutes, the roots wont uptake crucial nutrients.

https://www.amazon.com/dp/B07RRTZ8LF?ref=ppx_pop_mob_ap_share

Add your nutes to the water, I usually mix them in a gallon bottle. Once your nutes are mix in, phd the water. Depending on where you live some tap water have higher or lower ph. Adjust to 5.5 - 6.0

Also use this, you can see how much minerals is in your tap water and how much is coming out the pot.

https://www.amazon.com/dp/B01EFZ54E2?ref=ppx_pop_mob_ap_share

Ph adjuster liquids

https://www.amazon.com/dp/B000BNKWZY?ref=ppx_pop_mob_ap_share

These are the base nutrients I use, add the micro 1st, then the flora 2nd, and last add the bloom. I heard good things from foxfarm, both great companies

https://www.amazon.com/dp/B017H73708?ref=ppx_pop_mob_ap_share

Coco seems complicated but it really isn't, you have all the control. Number 1 rule always ph your water!