Question: New Axolotl Owner Question!!!!

[madamemonochrme]

Hello!
I recently got two cute little baby axolotls in February who arrived at about 2 inches long, so tiny. I'm raised them in shallow bowls for months now and after a few health hiccups they are growing in size. My leusistic is already 6 inches long! Its hard to change her water because she is so big, my little melanoid is only 4 inches due to an illness that caused him to stop eating and almost die, he got bloat really bad and I could not make it go away, he still floats every now and then but eats and has hit a growth spurt.
So anyways my question is that I have a beautiful 20 gallon long tank awaiting them but at what size will they be ready, is my Leucistic at six inches ready to move in?
Thanks for the help and any ANY additional information or tips would be amazingly loved, I'm so new at this.
Thanks,
Ashlee
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[Asevernnnn]

If they're heathy, they can be put in any time If it's cycled, but I would advise to put a divider between them due to size difference though, with hides and stuff

 

[madamemonochrme]

Thank you, I was told not to put them in until they were big enough because they wouldn't be able to reach the top but they never said how big and Espeon barely fits in her bowl anymore lolz. Thank you for the advise ^.^