Phosphate test - The Planted Tank Forum
 
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post #1 of 4 (permalink) Old 12-25-2018, 12:40 PM Thread Starter
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Phosphate test

I have an API phosphate test but it is bad because not is measuring my parameters. I have it like a year and already went bad. What phosphate test I can get that last and have good measure.
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post #2 of 4 (permalink) Old 12-25-2018, 02:52 PM
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What parameters is it measuring? I use API. Salifert makes one also. Google anyone?

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post #3 of 4 (permalink) Old 12-26-2018, 02:27 PM Thread Starter
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Quote:
Originally Posted by OVT View Post
What parameters is it measuring? I use API. Salifert makes one also. Google anyone?
Less than 1ppm no matter if I fertilizer with phosphorus or not. Then like 5 min later turns whitish colour. Maybe it is because I have almost 0 dkH
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post #4 of 4 (permalink) Old 12-26-2018, 06:32 PM
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Quote:
Then like 5 min later turns whitish colour. Maybe it is because I have almost 0 dkH
I have used the API test with very low KH water without issues. However I found the color chart difficult to match especially at 1 to 2 ppm of phosphate which is not usual for an aquarium.

Today I use this Hanna Phosphate checker:https://hannainst.com/hi713-phosphat...YaAsxiEALw_wcB

It has a digital readout and no color chart guessing. I have not had a problem with it at either high or zero KH.
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