Hey team, to sum up my question - is there a way to add too many or not enough drops of either ammonia bottle so that you get a false ammonia result? Why am i asking? here's the story. So I bought a replacement ammonia test last week for my master test kit because I'd run out. Yesterday I tested our QT that has cycled media (over 2 months cycled) and our established 4-5 month 160L tank. (I only tested the 160L because our apple snail was shut in its shell for most of the day which is odd behaviour.) I was stunned. Our QT was showing just under .25 ammonia & our 160L tank was at about .35! QT - I dosed stability & prime. Did a 30% pwc on the QT. Tested ammonia about 90 mins AFTER the pwc & it seemed *higher* (like a solid .25 or slightly more)! Did another dose of stability after the pwc. 160L - just 1 double dose stability and single dose prime. I started thinking about causes. Possibly overfeeding in the QT. Possibly a dead kuhli loach we can't see in the 160L.... then i remembered we'd done a recent 40% pwc in the 160L so I tested our tap thinking AHA! But NOPE. 0ppm ammonia. I fasted both tanks for the morning and only gave a "continental dinner." 3 hours of fretting later, i decided to re-test. Both were testing 0ppm. Went to bed thinking i was hallucinating random ammonia. Tested again this morning, 0ppm. whaaaa?? So. Did we have a mysterious spike in both tanks for no reason or did I somehow mess up the test because it's a new kit & maybe I didn't hold the bottles exactly vertical or something for the drops?? or did i miscount the 8 drops? Or do i need to tear the 160L apart looking for a dead kuhli? Or, and i won't be offended, is hallucinating ammonia like a side effect of this hobby?