1st time hydro, ppm question

i have a drip system and have two different p.h test kits,
both for fish tanks one has a little more tests and so
my question is i checked my tap, my r.o and my r.o and
tiger bloom mix and these are the results

(R.o watter)
NO3 ppm....o
NO2 ppm....0
Total Hardness ppm....180
Total Alkalinity ppm....80
P.H ....6.4

(R.O+ Tiger bloom)
NO3 ppm....200
NO2 ppm....0.5
Total Hardness ppm....250
Total Alkalinity ppm....0
P.H....5.8

(Tap)
NO3 ppm....0
NO2 ppm....0
Total Hardness ppm....120
Total Alkalinity ppm....240
P.H ....7.2

i know what the p.h should be but what about the rest

no one can give me any info?

What is the question?

Are you using a digital pH meter?
if not, then you don't know what the pH really is.
Swimming pool drops testers, are not good enough.

Are you recirculating your nutes,
or "run to watse"?

I see you are using RO water,
and that is a very goof thing.

I'll try to help if I can.
need more info.


.

Ok i have 5 hydro farm drip systems
and a airoponics mister .
All the nutes are circulated.
i have a few different ph testers,
all for fish tanks though ,
they all seem to get the same readings?
but i will get a good ph tester (any recomendations )
i have a good hydro store a few blocks aways,
i havent used any of the mentioned hydro set ups yet
i have a week or so left on some soil plants and
one in a homemade drip system i made using 2
5 gal buckets (pics below)

You realy need to look into getting additional light.

and a real PH meter and a PPM meter as well. THe pool testers arent configured for household uses.

in Hydro you need a PPM and PH pen its pretty much a must ...

RO water sucks, just my 2 cents

I like the blue labs trogen ppm pen and for ph i use a mini labs ph pen works for me
do not buy a hanna pen!!!