Hello, I have a Blue Crayfish(Blue Lobster) in a 10 gallon aquarium long. He's been in there for about a week now, and I just changed more like 70% of the water in my tank yesterday. My nitrates are 0, and my ammonia is high, I believe in the 3.0's. Everything, but my Ammonia is great. How can I get my ammonia down? Now I recently changed water conditioners from the one that came with the 10gallon tank, some kind of tetra stuff, to the conditioner from my local fish store. I went and had him test all my stuff since I do not have the testers, but I bought the ammonia one today since it's the one thats high, and I will eventually buy the others. He said the change in water conditioner could be my problem, and it could be throwing off the tests. He said to change 10% of the water because he would hate for me to gain nitrates from the change since I just changed it. What should I do to get my ammonia down?