Always better safe than sorry, but in my experience, the key card for the API kit can vary slightly from card to card. I've found that the ones printed individually are a better match than the all-inclusive one you get with the Master Freshwater kit. If there is ammonia, you will see green. Even the slightest tint of green is worth taking note of. Clean water is always yellow, beautiful yellow! ^.^ If you aren't sure, it helps to put the test on a white piece of paper, if the green is slight you can open the vial and look down through the top. It's easier to see it that way.
Paranoid fish-keeper checking in ^.~
Ammonia in a tank is ALWAYS worth freaking out about, no matter how little there is! (imo!)
I hope you have yellow, BK!
Last edited by Chesh; 08-29-2013 at 04:30 PM..