Verify the sex !! At 60 grams they have done NO growing and I'd bet $$ their 2010s..They hatch at 55-75 grams, If they eat in the current set up you can leave them in it but if they refuse the 1st meal or 2 you'll need to down size..
With that head color you you wont be looking at the darkest of blacks but they are great snakes to keep...ENJOY...