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Thread: pH Test Strips - which are best for hydro reservoirs?

  1. #1

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    Question pH Test Strips - which are best for hydro reservoirs?

    I'm after some suggestions as to which pH test strips to get. (Already have a pen but want to try strips now)

    It seems there's a wide variety of different chemical detectors used in pH strips, and some are "for urine/saliva only, not for water testing", and then there are "Low Ion" ones - "Lo Ion Kits give accurate readings in dilute or unbuffered solutions where ""dip and read"" tests may read low."
    I have no idea if I need low ion kit or not! But their 5.0-9.0 one would seem suitable and does come as test strips. I just use tap water, which has no detectable EC on my bluelab truncheon, if that matters.

    Does anyone have any suggestions - specifically for testing hydroponic reservoirs?

    At this stage I'm considering these from the pHydrion range (no idea how good they are but were dominant in my googles):
    - Hydrion Lo Ion Dispenser 5.0-9.0
    - Hydrion S/R Dispenser 5.0-9.0
    - Hydrion Test Paper pH 5.5-8.0 *it seems at least one version of the 5.5-8 is for urine but not water
    - Hydrion MicroFine Disp. 4.9-6.9

    I'm getting a separate general purpose 0-14 one too, but for this thread i'm looking for a more high-resolution (.2 to .5 resolution) one for hydro reservoirs, ~4-9ish
    Last edited by winterbeanie; 02-08-17 at 05:37 PM.

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    Why use strip wen you got a ph pen that doesnt make sense to me at all...

    You get a better reading from a pen then those shitty strips

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  5. #3
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    Ph strips are no good, why try an match colours when you can just dip the pen and get a straight out reading 😂

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    Because I'd like to. Also because I'd like a backup. Also because I'd like something to compare against. Also because it gives a second opinion. Also because it doesn't require constant calibration or chemical storage, and is quick to use. I personally don't need to know my reservoir is at 5.7219535, I just need to know it's between 5.5-6.5
    etc etc..... does it really matter why??? nobody have any experience/suggestions with them?
    Last edited by winterbeanie; 02-08-17 at 06:17 PM.

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    Buy 2 cheap Chinese pens,1 for backup.. Problem is, which one are you gonna believe?. ph strips are too inaccurate.

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    Daft idea tbh i calibrate me pen once a week thats it takes 30secs if that. If you want backup buy a 2nd pen lol

    My suggestion wud be bin the strips....

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  13. #7

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    I'd trust a decent pen over strips any day... mainly due to accuracy.

    If you do run strips & a pen together to compare, trust the pen (as long as it is accurately calibrated) for the true reading, as you will see variation

    Unfortunately, there are no PH test strips that I could really recommend
    “Faith moves mountains, but only knowledge moves them to the right place...”

    (Joseph Goebbels)

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    Quote Originally Posted by winterbeanie View Post
    Because I'd like to. Also because I'd like a backup. Also because I'd like something to compare against. Also because it gives a second opinion. Also because it doesn't require constant calibration or chemical storage, and is quick to use. I personally don't need to know my reservoir is at 5.7219535, I just need to know it's between 5.5-6.5
    etc etc..... does it really matter why???
    If you have got hair can you keep it on please 🤔

    TT is right strips are crap just ask anybody !!!

    Pens are the best option trust me.

    I'd rather calibrate mine that takes seconds than get a failed reading of a cheap test strips that you have to wait for about 5 mins to get a reading anyway !!


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    Whoops looks like I was late ... tappa didn't load everyone's answers only TT haha !!!

    Shut up G

    SERIOUSLY tho you asked people a question and they give you there theory from all the experience they have had and that comment seemed like you jumped down there throats abIt !!!




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    Quote Originally Posted by Dr green fingers View Post
    SERIOUSLY tho you asked people a question and they give you there theory from all the experience they have had and that comment seemed like you jumped down there throats abIt !!!
    "Jumped down their throats", complete with smiley face emoji! They didn't jumped down my throat "we'll ignore your question about Strips and just tell you to use your Pen"? *scratches head* Anyway they'll be fine - they got Thanked for not answering my Q!

    Nobody has even attempted to answer my question yet, and like I said in my first paragraph I already have a pen, but again it has nothing to do with my question.

    So can we please forget about pens - which again I already have - and am already using - for just one thread, and get back to my actual question which is about Strips not Pens?

    Q. Which pH test strips are best for our needs? (hydro reservoirs)
    Q. Do i need the Low Ion one for testing a hydro reservoir? (starting with tapwater with EC=~0.0/undetectable on truncheon, but ~1.5-2 after adding nutes)

    Thankyou for any help
    Last edited by winterbeanie; 03-08-17 at 03:35 AM.

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    Nobody uses them because the not accurate ! Look at hydro diaries !! Again nobody uses them because there not accurate .

    If you have a pen but want back up I suggest u get another pen.

    U say it's time consuming calibrating pens once a week for 20 seconds but you have to wait 5 mins everyday to get a inaccurate reading on a strip

    Pens don't give a reading of 5.7219532 they just say 5.7

    So I think you did get your question answered there . Don't use them as there not accurate 😁


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    Your question is daft though you have a pen even though its sounds like a cheapo it still more accurate then bloody strips.

    Beanie your obviously new to growin so try listen to advice thats given or learn the hard way and i will see you in infirmary section in couple weeks

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    If all your worried about is getting your ph between 5.5/6.5 you are going to Fcuk your grow up.. You clearly no nothing about growing and made not 1 valid point that you do... If money is a problem by a cheap Chinese pen for £5.00 or £3.00 & then wait 2 months for it to be delivered..

    Experienced growers in this thread tell you to buy a ph pen.. Personally I'd love you to buy some Ph strips and prove me wrong, its not going to happen..

    Good luck though, You're going to need it.

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    I'm a newbie and tried with the ph strips for about two days before I realised they are in no way accurate for growing purposes , listen to the advice dude I see what you were thinking but doesn't work mate too inaccurate


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    Your question was:-
    I'm after some suggestions as to which pH test strips to get.

    My answer was:-
    there are no PH test strips that I could really recommend

    Therefore I did answer your question...

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    Sorry to throw my 2 penerth in but,I'm laugh to myself,it's just like reading comments on Facebook someone ask a question gets told then carrys on,don't mind me I'm just stoned
    Davo


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    Quote Originally Posted by M_C View Post
    Your question was:-
    I'm after some suggestions as to which pH test strips to get.

    My answer was:-
    there are no PH test strips that I could really recommend

    Therefore I did answer your question...
    We all did mon !!! 😒

    Nothing to recommend because there crap and we only giving the best advice we can !!! Up to you if you listen or not my friend


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    Just having the same question out of curiosity. Why is everyone saying strips are no good? Up until now I always thought that anything manual is better than electrical. On Amazon there's some with pretty good reviews like pH Test Strips 120ct or Litmus pH Test Strips.

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    Quote Originally Posted by EmilyTaylor View Post
    Just having the same question out of curiosity. Why is everyone saying strips are no good? Up until now I always thought that anything manual is better than electrical. On Amazon there's some with pretty good reviews like pH Test Strips 120ct or Litmus pH Test Strips.
    As they no wer near as accurate. Try it buy a pen and strips and you will see

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