Re: Measuring you want to get a digital scale that measures in grams with a minimum accuracy of 0.1 grams. if you can find ones with 0.01 or 0.001 grams for relatively cheap, those would be great also. but if you're going with the PPS-Pro fert method, 0.1 is sufficient.
you can find them online, e-bay, hydroponics shops, or in the kitchen gadgets section. that's where i got mine from. |