View Full Version : Cuprisorb Colour question.
I have a 75 gallon tank using 100ml bag of cuprisorb. It is turning blue but what is dark blue black colour? any pics? It has been a day and it turning blue already. I have 0.50 of copper and it still says i have 0.50 of copper.
Tech Support CH
10-24-2005, 12:36
Unfortunately I don't have any pics, but it gets to be a blue close to the color of the blue bars that separate each post. I would give it a few more days and when it does not get any darker you will need to recharge it.
ok thanks it can do chelated copper right? its almost all blue and the testing kits still stays around the same. weird.
Tech Support CH
10-25-2005, 10:26
Cuprisorb will pull out chelated copper. Its color change is evidence that it has pulled out some of the copper. The reason the test kit does not show any difference is probably a result of the test kit not properly reading the chelated copper.
Recharge the Cuprisorb and continue with the removal process.