These are my first Axolotls ever. Got them 3 weeks ago, they are just over 3 months old. They've doubled in size since I got them! They live in 3g tubs right now, I have a 40g breeder that is set up and waiting for them. I haven't placed them in the tank out of concern for aggression, since they're still so young. I have a wild type (4.5"), a gfp golden albino (4"), and a pink leucistic (4.5").