Cupramine test darker with time

[karaim]

Treating fish with Cupramine and am using Salifert test kit.

After about 15 seconds, the test kit shows copper at .2. After about 2 minutes, it goes to about .5.

The instructions say measure after 15 seconds if testing for non chelated copper (i.e. cupramine).

Any thoughts?

 

[geaux xman]

you sure thats the salifert? i've been thru two test kits.

you read at 10minutes and 20minutes.

 

[karaim]

Positive it's salifert.

Read at 10 and 20 minutes?

Instructions (http://www.seachem.com/Library/Instructions/0966-CopperWE-4.2.pdf) say read 20-30 seconds after testing.

 

[geaux xman]

that is the Seachem test kit.

take a good look at your link there... it says www.SEACHEM.com

the salifert kit, 2mls of test water, 5 drops of reagent. mix and read at 10 and 20mins.

i have the seachem kit too and it is impossible for me to differentiate between .30 and .50.

 

[pencil3]

If you are talking about the Seachem copper test kit they have revised the instructions:

Thanks for the email and for using our products! We have actually found that when taking the copper reading using the Multitest: Copper test kit, you want to wait until the blue color reaches its maximum color intensity. This can take anywhere from 1-5 mins. We have since changed the instructions on all newer labels, but older ones will still be in circulation for a while. I hope this clears up any confusion and please let us know if you have any additional questions. Have a great day!

 

[karaim]

If you are talking about the Seachem copper test kit they have revised the instructions:

Thank you. Wow I feel like an idiot . I want to say Seachem and keep saying Salifert!!!

 

[LargeAngels]

I love Cupramine, but I don't like their test kit and now that they have done a complete 180 on how long to wait for the varying hard to read blue color I really don't like it.

pencil3: When and how did you get this info?

 

[pencil3]

This week from Seachem tech support via email.

I love Cupramine, but I don't like their test kit and now that they have done a complete 180 on how long to wait for the varying hard to read blue color I really don't like it.

pencil3: When and how did you get this info?