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Alright I just went out and bought PH up and down but couldn't find test strips. Its SPA ph up and down and is made up of sodium bisulfate and sodium carbonate, are these chemicals ok. Also if the plants are only a five days old is it ok to hold off on the PH adjustment of the nutrient solution...

Is it ok to use a pool PH kit to correct the PH of a hydro system? Or will that kill the plant.

Are they safe? I cooked out the THC into vegetable oil and then put it into capsules should the "pot pills" I made be ok for consumption still? I left them in the car for about two months and just found them.