Of course you should try but that doesn't mean the animal will switch for you . Either right away or down the road. I have a male in my rack who took f/ t in the past when he was younger but absolutely refuses to accept f/t now. I've tried numerous times to get him to switch and he's refused. I stopped trying bc I felt I should give him what he enjoys eating. These animals are captives, the least we can do is give them the food they will readily accept. That's just me. Haha.