Phosphate meter hanna

cadugauch

cadugauch

New member
I've tested my Phosphate today with my hanna colorimeter...got a reading of 0.00 twice. I am currently not running any GFO just carbon. I have no algae on the tank and have some chaeto on my refugium. I feed cyclopeeze and pe mysis daily to my tank. Any chance the reading can be wrong?
 
Don't know who made that video, but the conversion for phosphorous to phosphate was totally incorrect. The reading should be 0.17 when properly converted, it's even more off than in the video.
 
Phosphate meter hanna

Are you holding the button to make it do the 3 min count down?

I usually run the test around 3-4 times. I get some crazy readings some times. But the first one is always the lowest.
Last test readings were
0.03, 0.17, 0.25 0.18
so I round it off to about .20

I think the phosphate checker is +or- .05 so a reading of .05-.15 would
be within the range of the test results you would want to achieve
 
Be like me, give up on it. My SPS are not the most colorful but they are growing like weed and have some coloring besides brown. LOL
 
Southsid_reefer said:
Are you holding the button to make it do the 3 min count down?

I usually run the test around 3-4 times. I get some crazy readings some times. But the first one is always the lowest.
Last test readings were
0.03, 0.17, 0.25 0.18
so I round it off to about .20

I think the phosphate checker is +or- .05 so a reading of .05-.15 would
be within the range of the test results you would want to achieve
Click to expand...

yeah im used to doing this test...but latelly all i am getting is 0.00 and i am not even running GFO.
 
rovster said:
Don't know who made that video, but the conversion for phosphorous to phosphate was totally incorrect. The reading should be 0.17 when properly converted, it's even more off than in the video.
Click to expand...

lol...Never looked in the number but The guy on the video is ReefDVMs. The video I posted was to point out @ 3:10 why he might not be getting a reading. And the phosphorous checker might be a better option if in fact he is not detecting any phosphate with his H. checker. That might be one of the reason he is not detecting like on the video unless the his hanana checker is not working anymore.
 
Rarewon said:
lol...Never looked in the number but The guy on the video is ReefDVMs. The video I posted was to point out @ 3:10 why he might not be getting a reading. And the phosphorous checker might be a better option if in fact he is not detecting any phosphate with his H. checker. That might be one of the reason he is not detecting like on the video unless the his hanana checker is not working anymore.
Click to expand...

I personally use the ULR Hanna meter. I have never had problems with it and the readings have always been consistent with what I've seen in the tank. I'm pretty anal about testing, so I don't see why so many complain about it being erratic. I've tested sometimes multiple times consecutively and always get similar results.

FWIW, the conversion from phosphorous to phosphate as I understand it is PPB x 3.044/1000 = PPM. Feel free to correct me, but I'm pretty sure this is it, LOL!
 
rovster said:
I personally use the ULR Hanna meter. I have never had problems with it and the readings have always been consistent with what I've seen in the tank. I'm pretty anal about testing, so I don't see why so many complain about it being erratic. I've tested sometimes multiple times consecutively and always get similar results.

FWIW, the conversion from phosphorous to phosphate as I understand it is PPB x 3.044/1000 = PPM. Feel free to correct me, but I'm pretty sure this is it, LOL!
Click to expand...

Rovster- please elaborate more on what this means. Which is the ULR hanna meter? I have the big one that was out before the "Checkers".
 
Eddie, there are 2 Hanna checkers. One reads phosphate which is in PPM, and the other reads phosphorous, which is in PPB. The accuracy of the phosphorous meter is supposed to be much better. The conversion I posted above is to translate it into the phosphate reading we are all accustomed to. It's definitely more popular among the SPS crowd, because most of us run low nutrient or ultra low nutrient systems.
 
rovster said:
Eddie, there are 2 Hanna checkers. One reads phosphate which is in PPM, and the other reads phosphorous, which is in PPB. The accuracy of the phosphorous meter is supposed to be much better. The conversion I posted above is to translate it into the phosphate reading we are all accustomed to. It's definitely more popular among the SPS crowd, because most of us run low nutrient or ultra low nutrient systems.
Click to expand...

Ok.. Rovster, but my question is: which one is which? which one measures phosphorous, and which one measure phosphate?
 
Maybe someone dropped the checker and broke it while you weren't looking? Ive dropped and broken one before.
 
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