One of the two non-eaters is showing food-seeking behavior (still not eating anything I give). This is encouraging.
The other one is hiding behind a big piece of wood and is uninterested. This is not. Especially since this is what the last ones, which are now dead, did.
A few more of the intense gill flicking today. Getting to the frequency where I start thinking there's something to it.
Meanwhile the female SM seems to have more black showing in her body, including the eye stripe. It's slightly visible in the 1/24 pics but I think it might be more now. Might just be the angle, but maybe not. I'm starting to worry about her. The male is darkening up universally. That's not the angle. He basically looks like he's in the shade all the time, even when he's not.