easy to read ph test kit? - The Planted Tank Forum

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post #1 of 16 (permalink) Old 02-19-2013, 04:11 PM Thread Starter
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easy to read ph test kit?

Is there an easier to read ph test kit than API?

Between 6.6 and 7.2 all the colors in the water look the same to me.

Also, is there one that measure both low and high ph without buying separate kits?

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post #2 of 16 (permalink) Old 02-19-2013, 05:08 PM
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Quote:
Originally Posted by Soothing Shrimp View Post
Is there an easier to read ph test kit than API?

Between 6.6 and 7.2 all the colors in the water look the same to me.

Also, is there one that measure both low and high ph without buying separate kits?

You should just bite the bullet and pay for a PH pen meter. They are well worth the money.
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post #3 of 16 (permalink) Old 02-19-2013, 05:23 PM
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If you are having difficulty reading your API pH test kit, I would recommend you just get a pH meter. The pen types, while not particularly accurate, are fairly cheap.

I believe there are wide range pH test kits, but they would be harder to read as well, as the colour changes would be even more subtle.

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post #4 of 16 (permalink) Old 02-19-2013, 05:32 PM
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i like my tetra ph kit but the down side to it is that it only measures in .5, so when i measured one tank last night it was some where between 7 and 7.5 but more of a blue than a green so closer to the 7.5 side this is the one i use only other test i had to buy was the nitrate. but this kit has alot. and i ordered mine though walmart.com and had it shipped free to the store closes to me lol got to love when you dont have to pay shipping lol
http://www.thepondoutlet.com/home/tp...FcdDMgoddRIAVQ

ph card is the one on the front fyi
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post #5 of 16 (permalink) Old 02-19-2013, 05:40 PM
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Best one from 12tested so far:

http://www.marinedepot.com/American_...TEMOID-vi.html
Otherwise for cheap one from Amazon yellow ones. Buy 2 to have one for back up.
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post #6 of 16 (permalink) Old 02-19-2013, 06:23 PM Thread Starter
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LOL Okay okay, I surrender! How long does the pinpoint hold calibration for you?

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post #7 of 16 (permalink) Old 02-19-2013, 06:34 PM Thread Starter
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OKay, read this review and this concerns me about the marine pinpoint: "On the down side of things with this monitor is that it is not moving from tank to tank, if you have a large collection of fish, or operate a fish room, than another monitor or controller would work better."

I need to move it from one tank to another to another to check ph. Is this saying it is only accurate for one tank? And you would need to recalibrate for EVERY TANK?

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post #8 of 16 (permalink) Old 02-19-2013, 07:30 PM
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I have had my cheap PH pen for about a year now and no issue with it. I always keep the sensor wet (i.e. not wiping it dry after use). I use API test kit once in a while to make sure the reading is good and so far so good. I have over 10 tanks and I more or less remember their PH, and this pen gives me good/consistent reading as my tank PH ranges from 8.0 to 5.3.

Only time it gave me whacking reading was when it hadn't been used for about a month. It gave me 6.3 on 7.0 water. But it started to give me correct reading again after a few tests. I think it's because the sensor was dried for too long?
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post #9 of 16 (permalink) Old 02-19-2013, 09:37 PM Thread Starter
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It very well could be randyl, however it's about time for me to move up anyway. I'm thinking of it now like an investment.

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post #10 of 16 (permalink) Old 02-19-2013, 09:53 PM
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There's nothing better expect actual machines because the pH indicator used, Brothymol blue, is the best for pHs from 6.0 to 7.6. I find that they look most different when viewed with your test solution. Then again, it could be a misprint: I SWEAR the 10ppm and 20ppm are the same color on my Nitrates card.


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post #11 of 16 (permalink) Old 02-19-2013, 10:05 PM Thread Starter
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Yeah. Even then, colors differ a hue or two from card to card like a color printer. Drives me nuts.

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post #12 of 16 (permalink) Old 02-19-2013, 10:15 PM
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I can't believe people still depend on manual paper and droplet PH testing. The electronic pen is so much better and save you 90% of the time wasted on waiting. Had mine over a year and a half and still working. Just replaced the battery recently.

Also to use the pen correctly put the tip in water swirl it around until the PH number stop increase or decrease more than 0.1.

Don't have to go fancy and buy that meter for $99. Here's a better solution
Amazon.com: Neewer New Mini Digital Pen Type PH Meter PH-009 I Multimeter Tester Hydro: Home & Kitchen Amazon.com: Neewer New Mini Digital Pen Type PH Meter PH-009 I Multimeter Tester Hydro: Home & Kitchen
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post #13 of 16 (permalink) Old 02-19-2013, 11:18 PM Thread Starter
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Thanks for the tip Cookie. That's the type I'm fed up with though. LOL

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post #14 of 16 (permalink) Old 02-20-2013, 12:17 AM
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That is what I was talking for. Unfortunately if you drop them in the tank-they are dead.
It happened to me 4 times. If you keep them in the tank all the time they should last for about 6-12 months without recalibration. I have cleaning and storage solutions and 4.01 and 7 ph solutions for recalibrating-for tank water under PH of 7.For tanks with ph greater than 7.5 I have 7 and 10 calibrating solutions.
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post #15 of 16 (permalink) Old 02-20-2013, 03:49 PM
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Quote:
Originally Posted by ThatGuyWithTheFish View Post
I SWEAR the 10ppm and 20ppm are the same color on my Nitrates card.
I totally feel your pain... so my nitrate is either near 0, 5, "15", or 40 lol
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