Swiming pool or aquarium ph suplys

ColoradoHighGrower

ColoradoHighGrower

Well-Known Member
Rakin said:
As far as checking PH imho for me I only use GH drops. I notice you don’t have to calibrate the color of drops or worry that the drops may give you the wrong color.
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Plus, most pool testers only go down to about 6pH, so not low enough for hydro, perhaps okay for soil
 
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