Interested in this topic, especially as I’m about to introduce a new male wildtype Axolotl to my existing leucistic male, who I raised from a baby. I have read here that axolotls aren’t social, but I have also read posts that suggest they are. And I tend to agree.
My first axie seems to enjoy my company and watches me with interest, and seems a bit bored when I’m not directly interacting with him or moving around the room. If nothing else, the new tank mate will give him something to interact with. I can easily feed them separately. I grow my own earthworms and also have pellets, so have plenty of food.
I’m preparing a new 40 gallon tank habitat with lots of plants and hides, and will introduce them to it and each other at the same time. The new axie is about 7”, my older one is about 9”, so hopefully the size difference isn’t too great. I have a spare cycled 10 gallon tank at the ready in case I have to temporarily separate them. Hopefully nothing more than a few exploratory nips here and there, but even that will be unsettling!
Anyway, loving the wealth of information on this site. It’s been a huge help in setting up and maintaining this new (to me) species.