Swordtail Behavior

[RJLB119]

I recently bought a black swordtail (male) for my 20g long tank.  It already has 6 corys.  I researched swordtails and they seem to be fine alone (or with 2 females) and will not compete with bottom feeders.  I'm not sure if my swordtail is just getting used to the new tank, but he is constantly swimming around the bottom and touching the corys.  I have never seen him open his mouth when he touches them, but they sure scamper away!  It is like he wants to herd them.
 
My question is, will this behavior stop soon?  Am I wrong for putting a swordtail in my tank?  My corys don't seem traumatized, but they certainly are not as lazy as before he showed up.
 
Thanks!

 

[Ny82]

I find swordtails to be quite territorial and aggressive to other fish. I have a 20G long too and was recently advised not to keep them as they need a lot of room. 
He could just be getting used to his surroundings but keep an eye on him like I say, in my experience, mines had to be rehomed he would nip and bully everything. 

 

[RJLB119]

Darn.  Thanks for the warning!  I'll keep my eye on him.

 

[Ny82]

Yours might be different, he could calm down after he's used to his surroundings. I was just going by experience. I love swordtails as well. Good luck with yours!