By "the card", do you mean the SeaChem Ammonia Alert badge? If so, I actually keep them on all my tanks and find they are great to use as an alert, but the readings are terribly inaccurate. I've found the badges to regularly be off by 10x the ammonia. So if the badge says 0.1 ppm then my test kit will often read 1.0 ppm. I use an ammonia detoxifier as soon as I see a hint of color on the badge.
Powder Blue Tangs (and Achilles) are generally very sensitive fish and don't ship very well. I would suggest you ask the LFS to hold the Powder Blue for at least a few days until the fish is eating at the store and looking spunky and healthy. How big of a specimen have you been getting? I find they are a bit hardier around 3" than 5"+. Do you have anything in the QT for the fish to feel more comfortable? With copper you need plastic things (like PVC or plastic bowls), but if you use other medications you can use clay pots which are handy.
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~ Mindy
SPS fanatic.
Last edited by Myka; 05-27-2013 at 02:24 AM.
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