Hi, I've been fishless cycling my 14 gal
/65L aquarium for about 1.5 weeks, and over the last few days I've been seeing some very odd results. Yesterday I tested my nitrite levels, and they were clearly 0.25ppm, I tested them in the evening and they were back down to zero, but no change in the nitrate (still 0ppm) and couldn't really see a change in ammonia. I ran the same set of tests today, around the same time, I got a nitrite spike in the morning, but no nitrate, and ammonia hadn't noticeably decreased. I just finished another test about 4 hours later, nitrites were 0, nitrates were 0, and ammonia was maybe
at3ppm down from 4. It's a reasonably well planted aquarium, with 2 anubias, 2 large jave ferns, and 7 stalks of egeria densa. Does anyone have any idea what's going on?