Far too often we find out that our "male" is a female or vice versa. Reptiles, especially young ones are not easy to sex. It's just one of those things.

A word of advise, dominance issues never really go away. Letting them play together isn't getting them used to each other, or making them friends. As long as you are supervising them, they probably aren't doing much harm to each other aside from a little stress, but putting them back together is probably not going to be an option. They will settle back into dominant and submissive roles, and one may be bullied or stressed into not eating, or sickness.

I'd plan on keeping them apart, and only putting them together to mate if you are planning to breed them.

It would be great to see pictures of your viv.

Just a suggestion, not everyone comes to the blog section. You may want to post this on the water dragon forum. You'll get a lot more responses!

Welcome, by the way.

hey, and I'll try to answer any more questions you have. good luck. Be ready to build another enclosure, or you could add another 2 feet and if they get too stressed out, put in a divider they can't see through.