Normal behavior?

[ZooKeeperKarin]

I'm completely stumped on this one..
I have two adults (M&F) for just one week. The female is fine. She eats very well, acts fine, etc. The male did not eat when I first brought him home, except three mealworms. He ate again 2 nights ago (10 mealworms) but hasn't eaten since. I know they have been breeding in the past, and possibly since I've had them. Yesterday he started standing funny. He'll stand in the humid box with either all four legs straight and tail off the ground so the only part of him on the ground is his feet (his back is almost arched) or just now he was in the box with his back legs straight and tail off the ground (like he's sticking his butt up in the air).
Is this normal behavior??? I was thinking it's something to do with breeding, or maybe he's impacted (he was on sand at the pet store). His poop is too soft, but I wouldn't go as far as saying he has diarhea.
Otherwise he seems healthy and he shed today properly.

 

[steve905]

Soft stools can be a sign of parasites. TO make sure keep track of their weights for a couple of weeks and make sure that you have proper heating so they can digest their food. I know with my sons bearded dragons in the past I had one that got impacted and we soaked her in warmish water and it helped her poop out the sand that she had eaten. Hopefully this will help you.
Good Luck