Red Sea Nitrate - NON Pro - How to read?

[Dr4gula.f32]

I have a 65g JBJ. I swap the filter socks 2x a week, 5 gallon water change per week, feed once per day, and have an aquamax 1.5 HOB skimmer that skims brown muck that I empty 2x a week.

Since I started the tank 6 months ago I consistantly read about 32ppm nitrate with this Red Sea test. Today I did a 10 gallon change, and am still reading about the same.

I'm wondering if I'm using the test wrong.

Do I place the vial in the white center, and look through it at an angle to the other colors for a match, or do I place the vial on each color and see at which the vial color is no longer indistinguishable from the card?

Right now, with the vial in the center, it appears I would have between 20 and 50 ppm. It;s slightly darker than 20, but not as dark as 50.

But if I place the vials OVER the color chips, then 5ppm seems like the correct choice.

 

[TheBear78]

The vial of tested, coloured water goes in the centre of the disc (on a white background) and the vial of untested tank water goes on the edge. Looking from the top (lids off) you rotate the disc until the colours appear to match or as close as possible. Carrying out the comparison under a strong white light will help.

 

[Dr4gula.f32]

The vial of tested, coloured water goes in the centre of the disc (on a white background) and the vial of untested tank water goes on the edge. Looking from the top (lids off) you rotate the disc until the colours appear to match or as close as possible. Carrying out the comparison under a strong white light will help.

That is the Pro kit. I specifically asked about the non pro kit.

 

[xabo]

RedSea Nitrate / Nitrite Test Kit

Accurately measure the Nitrate (NO3) and Nitrite (NO2) in your new marine tank. Kit includes: 50 Nitrate tests 50 Nitrite tests Red Sea Nitrate/Nitrite Test Kit Contents Test NameElement# of TestsAccuracyRangeTest Type Nitrate NO3 50 ±1ppm 0-250ppm Colorimetric Nitrite NO2 50...

www.bulkreefsupply.com

 

[TheBear78]

That is the Pro kit. I specifically asked about the non pro kit.

Thanks for responding...
I can't see how it's any different in that you're comparing coloured test water over a white background. Estimate the level based on whichever is closest.

 

[Dr4gula.f32]

RedSea Nitrate / Nitrite Test Kit

Accurately measure the Nitrate (NO3) and Nitrite (NO2) in your new marine tank. Kit includes: 50 Nitrate tests 50 Nitrite tests Red Sea Nitrate/Nitrite Test Kit Contents Test NameElement# of TestsAccuracyRangeTest Type Nitrate NO3 50 ±1ppm 0-250ppm Colorimetric Nitrite NO2 50...

www.bulkreefsupply.com

I wasn't asking for a link to buy it

 

[xabo]

I wasn't asking for a link to buy it

If you look you'll see how to read the results.......

 

[Randy Holmes-Farley]

I have a 65g JBJ. I swap the filter socks 2x a week, 5 gallon water change per week, feed once per day, and have an aquamax 1.5 HOB skimmer that skims brown muck that I empty 2x a week.

Since I started the tank 6 months ago I consistantly read about 32ppm nitrate with this Red Sea test. Today I did a 10 gallon change, and am still reading about the same.

I'm wondering if I'm using the test wrong.

Do I place the vial in the white center, and look through it at an angle to the other colors for a match, or do I place the vial on each color and see at which the vial color is no longer indistinguishable from the card?

Right now, with the vial in the center, it appears I would have between 20 and 50 ppm. It;s slightly darker than 20, but not as dark as 50.

But if I place the vials OVER the color chips, then 5ppm seems like the correct choice.

Look down through the test vial on a white background against colors on the card not seen through the vial at all.