I'm in more of an emergency situation than I thought:
I need to start seriously looking in to re-homing some fish here. Testing for ammonia didn't even occur to me because this tank is two years old. All fish alive and accounted for, all inverts alive and accounted for, I haven't changed feeding patterns in months (I actually feed a bit less now)... the only thing I can think is the chemi-clean treatment I did to get the cyano under control after this all got out of hand the first time, but that was in March. If that caused a cycle shouldn't it be done by now? At the very least my corals shouldn't have been growing and improving for the whole month of April?
Gaaaaack. Cause or symptom?!?