Safe time to introduce kaiser newts

[Bahauck]

Hi, I am new to raising newts from eggs. I acquired some kaiser newt eggs earlier this year, long story short I have 2 newts approximately 7.5cm in two separate planted tubs. Both still have there gills. My question is i know the larvae can cannibalize, when is it safe/safer to put these two together. It was a challenge raising them from eggs and are both doing great so i would hate to lose one over putting them together prematurely.
Thank you,
Brant

 

[Niels D]

If they're both of the same size there's no risk of cannibalism if you put them together. They can attack eachother during feeding time though.