Firstly... I just tried to test my nitrate in my water to see how my cycle was going. 2 weeks ago it said it was ~20. Today it said 0. I was so confused, I have no plants in my tank at all. The colours also changed differently than they did before (after putting in #1 and shaking it, it was a dark orange, then after shaking bottle 2 well and putting in #2, and then shaking for a minute and leaving for 5 minutes, it turns up straight yellow I did it 3 times, same result) So I checked the lot number, and it might be that my BRAND NEW (aka 6 weeks old, when I got my aquarium) API liquid tests are old. So I was wondering if someone could check my lot numbers to tell me if they have expired? 1563A-06-1008 (both pH tests, Nitrate #2, Nitrite) and 1562A-05-0806 (both ammonia tests, Nitrate #1) I'm really frustrated that I spent all that money on the tests, only to find that it may be expired, and that my water chemistry may be different than what they really are! Another thing is my cycle. The test kits may be the problem with this, but so far, I feel like I'm going nowhere. The nitrites are off the chartsx10, and may or may not be turning into nitrates, seeing as my test results are different than a week or so ago. The ammonia is not being processed. By six weeks, and with nitrites, i'd expect that it should be processing ammonia very quickly now. Instead, it barely goes anywhere!!:;fru To top it off, I just went to the dentist to fix a tooth that hurt since they have 'fixed'(I came in with a cracked filling that didn't hurt, left with a perfect filling that hurt) it 5 months ago , put me through severe pain, said they 'fixed' it again, though I am almost sure they didn't, and had to pay an extra $100 because my insurance only covers one fixing like that every 24 months. Lets just say its not been the best day for me. I'm considering tearing down my tank, ordering my goldfish from online before it is freezing weather, and buying some TSS.