Differing nitrate readings?!

[Sidney3773]

So I’m currently battling dinos and have been dosing some nutrients as nitrates and phosphates were bottomed out, ergo probably the cause (full deets on my post in general discussion).

Today my hanna checker arrived for nitrates as I thought it would just be easier and more accurate for every day checks while I’m tackling dinos.

However I’ve just checked levels and the hanna came back with 43.1 after my chem test yesterday gave 2.5. So I also did a chem test and I believe that’s reading around 10 (see attached, light’s bit great for photo but best I could do…certainly wouldn’t say it’s reading at 40 odd?!).

Yesterday I dosed 26ml of neonitro, added copepods, dosed 6ml of phytoplankton and added coraline algae scrapings (all for the Dino battle). So would expect a raise in nitrates, but not to that level and not with a disparity between readings.

Any thoughts/suggestions?!

 

[Miami Reef]

Hannah Nitrate HR False Low Readings

I’m having an issue with my HR Nitrate checker. I know my nitrates are around 8ppm because my tester always tests around that, and I’m not using a nitrate reduction method. It also comes close with my ICP readings. The other day I tested (emptying the whole packet of reagent, as usual) but...

www.reef2reef.com

 

[Miami Reef]

Wait, are you using the LR or the HR checker?

 

[Sidney3773]

Wait, are you using the LR or the HR checker?

HR as I’m aiming for higher nitrates for the dinos

 

[Sidney3773]

Wait, are you using the LR or the HR checker?

But still not sure about the disparity in my readings and that hanna is coming back worryingly high

 

[Miami Reef]

HR as I’m aiming for higher nitrates for the dinos

That’s interesting. I’m not familiar with the appearance of your Hanna test kit. I never got that chart paper. Interesting.

I would also be concerned if your readings aren‘t showing precise readings.

Luckily for dino control, the actual value isn’t as important as simply getting it above 0.

 

[homer1475]

Rerun the hanna?

I always used the red sea pro before switching to the hanna HR. They seemed to match pretty closely from my experience.

Whats the other kit your using?

 

[Spare time]

HR as I’m aiming for higher nitrates for the dinos

Dinos don't seem to care about nitrate levels. The seemingly strong correlate is 0.00 phosphate, but no one really knows what causes dinos despite what some on here might say.

 

[Dan_P]

So I’m currently battling dinos and have been dosing some nutrients as nitrates and phosphates were bottomed out, ergo probably the cause (full deets on my post in general discussion).

Today my hanna checker arrived for nitrates as I thought it would just be easier and more accurate for every day checks while I’m tackling dinos.

However I’ve just checked levels and the hanna came back with 43.1 after my chem test yesterday gave 2.5. So I also did a chem test and I believe that’s reading around 10 (see attached, light’s bit great for photo but best I could do…certainly wouldn’t say it’s reading at 40 odd?!).

Yesterday I dosed 26ml of neonitro, added copepods, dosed 6ml of phytoplankton and added coraline algae scrapings (all for the Dino battle). So would expect a raise in nitrates, but not to that level and not with a disparity between readings.

Any thoughts/suggestions?!

Hanna Checkers is probably correct.

What is the name of the other nitrate test kit?

 

[Sidney3773]

Rerun the hanna?

I always used the red sea pro before switching to the hanna HR. They seemed to match pretty closely from my experience.

Whats the other kit your using?

I had done one about five minutes before and it was 45! The other kit is Marine Labs by NT Labs

 

[Sidney3773]

Hanna Checkers is probably correct.

What is the name of the other nitrate test kit?

Marine Labs by NT Labs

 

[Sidney3773]

That’s interesting. I’m not familiar with the appearance of your Hanna test kit. I never got that chart paper. Interesting.

I would also be concerned if your readings aren‘t showing precise readings.

Luckily for dino control, the actual value isn’t as important as simply getting it above 0.

That’s not the Hanna, that’s the chat for the Marine Lab chem test kit

 

[Miami Reef]

That’s not the Hanna, that’s the chat for the Marine Lab chem test kit

Ooohhh. Ok. I see now.

I misinterpreted the original message.