crested geckos!!

[snakedude_03]

hey.. i have 0.1.2 in a tank right.. would it be ok if i added an adult (1year old) male into it?please help me!!

[Lisa]

you will want to find out what the unsexed are. also how big is the tank?

[DragnDrop]

As well as the points Lisa made, how old is your female? Adding an adult male could be a bad idea if she's almost sexually mature, but not really ready to breed. You might end up with the gecko equivalent of a 'pregnant teenybopper'. She might have all her parts in working order, but not really be ready to produce eggs, which could end up causing problems for her - anything from stunting her growth all the way to death from egg-binding.
I'd hold off on putting a mature male in the group. There's also the chance that one of the younger ones is a female, who could end up mating prematurely somewhere down the road.

And don't forget to quarantine a new one for at least a month, preferably 2 or 3, in case he's harbouring some unseen cooties.