In fact I tagged you some weeks ago in post #24, page 3
https://www.monsterfishkeepers.com/...us-wyckioides-mr-crankypants-16.678397/page-3 ARTC triumph was short lived. Sorry brother. I did the best I could under with my present knowledge and skill. IDK why it threw in the towel. No clue. It is a bit more comforting to know that other keepers experienced the exact same thing at the same fish size and age, so perhaps there is a chance it was not me screwing it up.
On the black ear - nah, 'twas a long, long shot. I am happy you have solved your problem locally what not. I was only offering it as a hail mary seeing how you had been becoming more and more desperate. I should have been the last you contacted