Follow up on my post a week ago. Our Capnella is still retracted about as completly as I can imagine possible. She has not opened in nine days. It stands upright, not collapsed.
Here is my original post with photos. No change. If anything it is uniformly getting slightly darker. Not splotches or spots, just darkening all over.
I've been running carbon since last Saturday (6 days). Everything else in the tank is fine. Params are good holding steady - no changes in months.
I'm trying to be patient...