Day 82
Nitrites at 12 hours: 2.0; at 15.5 hrs, still at 2. Checked pH - 6.0. I did a 50% water change. pH rose to ~7.6; nitrites dropped to between 0 and .25. Water temp is F 83.9
This is the 3rd pH drop: March 22 to 6; March 28 to 6.6 and today, April 10 to 6. After the last pH drop OldMan47 recommended removing the crushed snails b/c decaying snails add to the ammonia level. Since the first week of April, I again left crushed snails in the tank; although the numbers have considerably decreased since I scrubbed the wood on day 80, three days ago. I'll get back to removing them.
Also note that until the 2nd drop, I had been dosing ammonia to 5ppm. Since then I've cut back to 4ppm.
I'll check ammonia levels tomorrow.
Ranjohns