| | Re: Can I put these 3 together eventually?
I would be more worried about two males being territorial than I would be about the incest, especially if you aren't planning on breeding. If the baby is a male, I personally would keep him in a separate tank.
Honestly, moving the axolotls in and out to try and prevent eggs is going to be a HUGE hassle, a major stress on your axies and probably won't be very effective. As cruel as it sounds, your best course of action with unwanted eggs would be to cull them after she lays them.
Currently keeping: G. pulchripes, G. rosea, B. smithi, H. maculata, P. regalis, A. versicolor, A. mexicanum, A. laterale, A. tigrinum, E. macularius, R. ciliatus, H. caudicinctus, G. gecko, R. lithobates, P. regius, B. c. imperator, E. colubrinus