Can't you just stop free feeding a start to schedule it? Put their food down for them 2-3 times a day, let them eat and then what they don't eat gets taken up. They might not eat alot at first but will soon realise that either they eat when the food goes down or they don't eat at all. In my experience it only takes a few days before they are wolfing down every little bit.
__________________ Indy, Benjamin and Malachi   There is no psychiatrist in the world like a puppy licking your face- Ben Williams |