aquarium pharm. nitrate test question

[wigglejaggles]

Hey Now all,

I have aquestion about reading the final results of the nitrate test.

When I hold the tube up against the white part next to the color blocks as pictured in the directions, I see a shade that is between 5-and 10.

Now...if I look directly down into the tube at the top I see a much darker orangish-reddish color....which would mean I have excess nitrates. So at the very top its a much darker color than the rest of the tube below.

So how do I judge it?


thanks! I hope I explained it right.

take care,
Jared

[Dapple2]

You should read them looking though the side of the tube against a white background (like the card).

Perhaps the colour looks different looking into the tube from the top because of the way the light is refracting?

[Prometheus]

Originally posted by Dapple2
You should read them looking though the side of the tube against a white background (like the card).

Perhaps the colour looks different looking into the tube from the top because of the way the light is refracting?

Yep, yep.

From the side.

[jt325i]

IMHO this test could be a bit better designed. I also find it difficult to read nitrite levels with this kit. Not much difference between the 2ppm & 5ppm levels on the card.

[Lauren]

Originally posted by jt325i
IMHO this test could be a bit better designed. I also find it difficult to read nitrite levels with this kit. Not much difference between the 2ppm & 5ppm levels on the card.

hijack: jt, into bimmers?

[jt325i]

Originally posted by Lauren


hijack: jt, into bimmers?

Sure am..... '92 325i. Shopping around & ready to move up to a newer one soon though.