Has anyone seen a pattern on what types usually quit eating first? Like, maybe, albino..
Anorexia in Western Australian axoltls: Great question Willowcat. I have seen it, but never seen it raised as an issue viz link betwixt Anorexia and colour morph. Two variations on the theme too. 1) Healthy adult axolotls becoming Anorexic. 2) Wasting phenomenon in hachlings and small larvae.
Returning to Willowcat's question... I have seen it, over 10 years, in two breeding-age males, about 5 years apart. Both dark-eyed mocha coloured males. Unrelated (as best they can be, given no 'new blood' in Australia, to speak of.) And not 'inos.
The first male never really recovered, but I did get him 'over the line' by keeping him 'penned' in a coral bed filtration pipe with constant cool running water. I'm fortunate to have commercial grade aquaculture facilities at my work site. He died, but from other accidental causes. The second male fully (?) recovered a year ago and is paired at the moment. When he had anorexia he fed poorly, with a gap of between 2 to 4 weeks between feeding. This went on for about a year. He got very skinny. Now, awaiting eggs from his mate. Successful breeding, by him and his mate, will be the real test to see if he is functionally recovered.
Anyone experiencing this problem, but losing the adult axoltls should, if they can bear it, do a post mortem. The problem could be as simple as a gut blockage. (Small stones etc.) You cannot put Humpty back together again- but you can take steps to avoid future blockages and losses, if that's the cause of the problem.