Originally Posted by torty
I do separte them at dinner but if I have his hay bag full all day I would have to put it in the paddock so he had access to it and the other horse would eat it when he walked away. He is the boss so if he wanted it back she would move but I don't want her getting too fat
It seems you are trying to keep two incompatible animals together - not in that they are incompatible, but their needs are. He NEEDS to have hay in front of his face 24/7 and you are concerned about her gaining too much weight. I would suggest trying free choice hay to see whether she does gain too much or not (it may surprise you) and, if she does, you would need to cross-fence so that you can provide him the free-choice he needs while still restricting her's.