Nitrate Test Kit.... Hana?

[William Morris]

If you mean both Hanna's for phosphate - there was a thread recently that discussed the different phosphate checkers that Hanna makes.

 

[Chrisz]

Nitrate can be much higher than that. I keep mine at somewhere between 10 and 20.
Randy will weigh in here - I forget what he advises for today's reef tanks.
The old school was to keep both Phosphate and Nitrate a zero - but that turns out not to be ideal.

Is that 10 and 20 ppm or ppb? I'm guessing ppb?

 

[Chrisz]

If you mean both Hanna's for phosphate - there was a thread recently that discussed the different phosphate checkers that Hanna makes.

Asking nitrate checker, I have both Hana phosphate checkers

 

[William Morris]

I don't use the Hanna Nitrate kit - I looked at the directions and that was enough for me.
Check out the BRS video on test kits - they did a nice job researching what works best for the different testers.

 

[William Morris]

BRS Video on test kits

 

[Chrisz]

BRS Video on test kits

Wow I did not realize the accuracy was that far off on these test kits, I thought Hana was the gold standard apparently not

 

[William Morris]

A lot of it has to do with who is doing the testing and how careful they are in measuring / cleaning / etc.

 

[Woodneers]

I’ll say I have the Hanna and it compares closely to my salifert kit. On the salifert I had to look at the vial through the side and got 2.5 while the Hanna measured 2.53. Close enough for my purposes!

 

[Greg P]

So the ultra low will go up to .200 ppm or 200 ppb unfortunately I have no clue as to where I am at now, the current test kit starts at .25 in detection

Geese I almost need both Hana's

If you mean the PO4 colorimeters, the HI736 reads to 200ppb which converts to 0.613ppm
I'd say if you're above that you'd only need another tester if you want an exact #. Otherwise, just use reduction methods until it drops below the max range.

EDIT nevermind saw your post too late about NO3 testers

 

[Chrisz]

here's what I was looking for...

 

[Philly Reefer]

here's what I was looking for...

Do you mean this?
https://www.google.com/url?sa=t&sou...Vaw1iguiZq9_3VX4jFkLnh197&cshid=1612402598308

 

[Chrisz]

Do you mean this?
https://www.google.com/url?sa=t&sou...Vaw1iguiZq9_3VX4jFkLnh197&cshid=1612402598308

Oh that's a phosphorus to phosphate

 

[Greg P]

Not sure this is helpful
The HI781 reads to 5ppm or 50ppm with dilution. Maybe it's possible to dilute the test further to read above 50?
I get by with the Salifert NO3 kit

 

[Chrisz]

Not sure this is helpful
The HI781 reads to 5ppm or 50ppm with dilution. Maybe it's possible to dilute the test further to read above 50?
I get by with the Salifert NO3 kit

yep it says you can dilute, but gives no instruction on how

 

[Greg P]

yep it says you can dilute, but gives no instruction on how

On this page, there is an instructional video, and an instructional video with dilution

https://www.hannainst.com/marine-nitrate-checker-hi781.html

 

[Chrisz]

Test kit is on its way

 

[Chrisz]

I performed my first test, it really wasn’t all that bad to do.

I did the test with Chemiclean in the water so not sure if I got accurate results, I’m currently battling red slime now after having Dino first.

My phosphate is .06 (Hana) and nitrate shown below what should I be shooting for to avoid dino and cyno?