I just sat up a new 3.5 gallon, added gravel and some plants, and acclimated the betta. I had the filter running also. I had a background on it, but he went crazy flaring so I had to take it off. A little while later, it looked like his fins were starting to clamp a little and he darted around the tank everytime I moved. I thought that I should check the ammonia levels, and the results looked a little greenish to me.

Why would there be ammonia when I just put the fish in? The fish had been in a 1.5 gallon quarantine for about a week, so it shouldn't have been the regular conditioned tap water. I did a big water change and checked again, but the yellow and green results are hard to tell apart. It looked a little yellower, but...

Oh, and I plan to cycle the tank.