Some does and some don't , it's depend on the circumstances of their injuries . At their young adult size 6.5" mostly they aren't normally violent against each other. But these two have been at it for a while I have never seen anything like this in my years of breeding them , they won't easily let go and they seem to always try to eat the same worm, They'll swim around with worm in their both mouths and thrash around pulling each other tails to steal the worms back. It can get ugly till I break them up or cut the worm. Worse is that they'll actually completely stop eating if they don't stay in the same tank when I tried to separated them , even their favorite food or no matter how good of the water condition is, they'll just keep stared at the wall till they're so skinny I had to ended up get a new tank for both of them with the divider screen net so they can tuck the worms that weave them self through the net safely away together. So no, I don't expecting them to heal the same way ever. Just want to unfold it . Last night I raised the level of alkaline and it seems to unfold their tail out a little more now cause my water tense to have lower alkaline with very low ph. My water normally just on the borderline not yet too soft . I always had to depend on aquarium salt, but I just bought aquarium alkaline buffer (seachem 600grams) great and very gentle for axolotl.
