Something is up with my 55g. It’s been fully cycled for about 6 weeks, and I’ve been stocking it slowly (well, my version of slowly). Everything was going well until I added ghost shrimp. The lfs suggested 50 (!), I went with 20, and after a few days, only 8 remain. I tried to pull each dead one asap, but probably missed a couple. Could this send me into a cycle again? Here are my parameters today. Using my API master kit. Ammonia: .25 Nitrite: .5 Nitrate: 40 (My hardness test kit is arriving soon.) My lfs says API is inaccurate, so I wanted to get more tests. Since my lfs is 1.5 hour drive, I just went to petsmart and petco for water tests. The very rude woman at petsmart gave the following results, and told me I have no BB whatsoever. Whaaaaat?! I said no I’ve been cycled for awhile. She said well how often do you do water changes? I said weekly. She said well that’s why you have zero BB. But I thought the BB lived on surfaces, not in the water! Ammonia: .5 Nitrite: 0 Nitrate: 0 Total hardness: 175 (When I asked her how they measure hardness, she said I have no idea, I just get a number. Nice. When she said 175, I told her ok so it’s ppm. She shrugged.) The guy at petco used a test strip. Ammonia: 0 Nitrite: 1.0 Nitrate: 0 Total hardness: 150 ppm I just dosed Prime, since 2 of the 3 tests show Nitrites. Sigh. Suggestions and criticisms welcome. I’ll try to turn down the ol’ ego in order to help the fish.