I just bought a 2 yr old quarter horse filly. Where she came from they only had mares and we only have geldings. Right now she is seperated but how should I go about introducing her to the geldings? We have a retired (he's 27) tennesse walker, a full blood arab, and a tb. When I first brought my filly home the arab was showing aggression... charging the fence at her anytime she went near it. He's calmed down now though after a couple days. Any ideas how to make them all one herd? I'm worried the big geldings are going to be too rough.