This morning’s test results were:
- KH: 10-11 ° (179 ppm)
- nitrite: 5 ppm
- nitrate: 5-10 ppm
I *think* something might be happening with the nitrite… but I can’t really be sure, given how little the readings are changing. I also think I might have overestimated what the nitrate is, previously, although the recent water changes should have reduced it by quite a lot.