Phosphorus Hanna tester

Rmckoy · Dec 28, 2020

When I went looking for a better quality test kit for phosphates I was advised to buy the phosphorus kit as it was was supposedly better to measure lower levels .

is phosphates and phosphorus the same ?

Reef. · Dec 28, 2020

Rmckoy said:
When I went looking for a better quality test kit for phosphates I was advised to buy the phosphorus kit as it was was supposedly better to measure lower levels .

is phosphates and phosphorus the same

No but a simple maths division gives you the result in po4, think you divide the result by 1000.

Rmckoy · Dec 28, 2020

Reef. said:
No but a simple maths division gives you the result in po4, think you divide the result by 1000.

The ppb was 24 phosphorus
Divided by 1000 = .024ppm
Are phosphates and phosphorus the same ?

1ocean · Dec 28, 2020

Rmckoy said:
The ppb was 24 phosphorus
Divided by 1000 = .024ppm
Are phosphates and phosphorus the same ?

Hi,
24 ppb of phosphorus would be 0.074 ppm of phosphate is a little high.
Formula is ppb x 3.066 / 1000.
Here is a conversion chart

Rmckoy · Dec 28, 2020

1ocean said:
Hi,
24 ppb of phosphorus would be 0.074 ppm of phosphate is a little high.
Formula is ppb x 3.066 / 1000.
Here is a conversion chart

Thanks for the conversion chart .
Everything seams happy . But I’ll try lowering those numbers a little

1ocean · Dec 28, 2020

Rmckoy said:
Thanks for the conversion chart .
Everything seams happy . But I’ll try lowering those numbers a little

No problem. Don't go too crazy chasing numbers.
What are you planning to do to lower the number a little? A water change and then retest in a day?
GFO reactor?

ShepherdReefer · Dec 28, 2020

That conversion chart is awesome and very useful.

Rmckoy · Dec 28, 2020

I’ll prepare for a wat

1ocean said:
No problem. Don't go too crazy chasing numbers.
What are you planning to do to lower the number a little? A water change and then retest in a day?
GFO react

1ocean · Dec 28, 2020

ShepherdReefer said:
That conversion chart is awesome and very useful.

So is Kentucky Bourbon !!!!!!!

Rmckoy · Dec 28, 2020

I’ll prepare for a water change but as you mentioned , no big hurry .
I wanted to do one by the weekend and test everything .
after adding a bunch more frags i want to track alk , cal and mag .

ShepherdReefer · Dec 28, 2020

1ocean said:
So is Kentucky Bourbon !!!!!!!

Kentucky Bourbon is everywhere where we live. What is your favorite?

1ocean · Dec 28, 2020

ShepherdReefer said:
Kentucky Bourbon is everywhere where we live. What is your favorite?

The old formula of 1792 before the rack house disaster, my #1 all time. I have a few pre disaster bottles. The new bottles of 1792 do not taste the same and now it seems its being mass produced.....
Blantons and Bulleit now my new #1.

Duffer · Dec 28, 2020

Rmckoy said:
Thanks for the conversion chart .
Everything seams happy . But I’ll try lowering those numbers a little

If everything looks happy I would not do a thing... keeping phosphates stable is just as important as keeping alk stable

PatW · Dec 28, 2020

I just do a quick and dirty multiply the result by three and divide by 1000. So a result of “2” would be 6/1000 or .006. Essentially the dividing line for the test is ”10” which gives a result of .03 (which seems to be the agreed upon phosphorous sweet spot).

I sometimes get high readings with the test. If I bother retesting, the result is ”normal”. I think it is the result of a particle of high nutrient material (fish poo, food, algae or whatever) got into the sample and spiked the reading.

ryshark · Dec 28, 2020

Just out of curiosity, why do so many people get the Phosphorus Checker instead of the ULR Phosphate Checker? With the ULR Phosphate Checker you don't need to be a mathematician. I'm assuming they are both relatively close in accuracy, maybe the only difference is the Checker does the math for you? I'm not sure.

Uncle99 · Dec 28, 2020

Rmckoy said:
The ppb was 24 phosphorus
Divided by 1000 = .024ppm
Are phosphates and phosphorus the same ?

The Hanna can wander a bit, 24ppb is great.
Increasing such small amounts can be a slippery slope. You may find yourself buying some GFO to reduce it.
I would not touch that.
When mine is in the 10-50ppb range, I’m happy.

Reef. · Dec 28, 2020

Rmckoy said:
Just out of curiosity, why do so many people get the Phosphorus Checker instead of the ULR Phosphate Checker? With the ULR Phosphate Checker you don't need to be a mathematician. I'm assuming they are both relatively close in accuracy, maybe the only difference is the Checker does the math for you? I'm not sure.

the phosphorus checker is said to be more accurate, BRS did a video on this and indeed it seemed to be the case.

ckalupa · Dec 28, 2020

ryshark said:
Just out of curiosity, why do so many people get the Phosphorus Checker instead of the ULR Phosphate Checker? With the ULR Phosphate Checker you don't need to be a mathematician. I'm assuming they are both relatively close in accuracy, maybe the only difference is the Checker does the math for you? I'm not sure.

the phosphorus checker is more capable in the lower ranges than the phosphate checker. Alternately the phosphate checker reads higher range than the phosphorus checker.

ryshark · Dec 28, 2020

Reef. said:
the phosphorus checker is said to be more accurate, BRS did a video on this and indeed it seemed to be the case.

I'm pretty sure that BRS video was done with the old Phosphate checker before the Phosphate ULR checker was out.

ryshark · Dec 28, 2020

ckalupa said:
the phosphorus checker is more capable in the lower ranges than the phosphate checker. Alternately the phosphate checker reads higher range than the phosphorus checker.

The ULR version is for the Ultra Low Range.