what is my phosphate reading?

[jimlin]

seachem test kit

 

[Tink]

I know this response isn't an answer to your question exactly, and I apologize for that ahead of time. I highly recommend the Hanna low range PO4 tester, that thing has made my testing procedure MUCH more accurate, and very easy (once you get the hang of the Hanna test procedure that is).

 

 

My best guess for the above is .1ish

[Jason Rhoads]

Wow, that is a tough one. I can only say somewhere between 0 and .2

[netpez]

Looks like 0.1 to me... Of course I am so bad at differentiating colors ..

[Origami]

I tried something new here just for grins. Figuring that we often judge colors by their saturation (light and dark first) as well as their hue, and not finding an exact match by taking a "chip" from the sample using Paint software and sliding it across the color chart, I decided to look at the ratios of the pigments by taking your picture and running "Instant Eyedropper" across it to determine the RGB composition and to look for something that came reasonably close to matching the relative percentages of red, green and blue when comparing the sample to the test strip. Whether or not this is a reasonable approach, the best that I could come up with using it was about 0.065 ppm.

[Jason Rhoads]

darn Tom, you just blew my mind! Innovative use of photo editing technology

[jimlin]

wow, thanks tom.