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Old 05-27-2019, 04:32 PM   #1
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Hanna vs API

Which one should I believe In?

I have an API and every time I tested ammonia I had a hard time reading it since it was between 0ppm and .25ppm. So I bought a Hanna Checker for a more ďaccurateĒ reading and first it was reading .7ppm and today it was reading 2.0ppm while API was reading 0 to .25ppm.

Fish look fine. Do you think I got a defective one or which one should I believe in?
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Old 05-27-2019, 04:42 PM   #2
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Hanna checkers are the accurate test kits, not API.

You're at 1 lbs per gallon of rock in the system? Since I haven't used this test kit I'm not sure if it has the ability to detect ammonia as it is being consumed as part of the nitrate cycle and it might not be a problem at all.
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Old 05-27-2019, 04:48 PM   #3
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Quote:
Originally Posted by Sniperhank View Post
Hanna checkers are the accurate test kits, not API.

You're at 1 lbs per gallon of rock in the system? Since I haven't used this test kit I'm not sure if it has the ability to detect ammonia as it is being consumed as part of the nitrate cycle and it might not be a problem at all.


I have 65lb of rock plus 65lbs of live sand. All my other parameters look good.
PH 8.4
Ammonia. .0ppm API and 2.0ppm Hanna
Nitrites 0
Nitrates 0
Phosphates .07
Alk 10.6
Calcium 560
Magnesium 1630
Salinity 1.024
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Old 05-27-2019, 06:48 PM   #4
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And this is an established system right? Weekly water changes too right?
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Old 05-27-2019, 06:52 PM   #5
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And this is an established system right? Weekly water changes too right?


Yes. Iíve been doing weekly water changes. I also did a big water change on Thursday (40%) and another one Saturday (10%) changed filter socks and replaced gfo and carbon.
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Old 05-28-2019, 12:27 AM   #6
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Then I wouldn't be worried about it at all.


Can I ask why you are checking ammonia? I stopped checking ammonia and nitrite as soon as my tank is finished cycling.
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Old 05-28-2019, 01:35 AM   #7
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Then I wouldn't be worried about it at all.


Can I ask why you are checking ammonia? I stopped checking ammonia and nitrite as soon as my tank is finished cycling.


I started testing for ammonia because some of my zoas and frogspawn werenít doing well so I just decided to test for everything.
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Old 05-28-2019, 05:05 AM   #8
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How are your alk levels? That is where I'd look first.
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