Which one is better to test the ph of hydroponics , the ph strip indicators or the ph water solution indicators?
if you want to get as accurate as possible, get a digital meter. i got my first one on e-bay for about ten bucks. of the two above, it's a crap shoot. probably the strips, since there's less room for human error.
nope the solution, but as growbot said a digital ph meter along with a tds/ppm meter are essential equipment for hydro growing. Howqever, you can ignore the advice and we will see you crying about problems with plants. Good Luck.