So I don't know what happened, but my only guess is that I have reset my cycle somehow with the filter cleaning about 3 weeks ago. Gda returned heavily. Completely covers glass within 4 days. Some was accumulating on plants the past few weeks but seems to have stopped. In addition I now suffer from cloudy water, which I suspect is an algae bloom of some sort. Plants stalled for a few weeks but seem to be recovering. It's a real bummer because everything was going great. Guess I will just try to wait it out again. Really don't know what to change.