Hi PC. Don't know about the youngsters (there's another couple of similar posts about 6 week olds that I'm really interested in as well), but when I give mine Flubenvet, I do it using grapes. Cut them in half, partially lift out some of the flesh and put in some powder. I normally use the handle end of a teaspoon and gather up a small heap on it, pop that onto the grape and press the flesh back down. To make sure that they each get the same amount, I just give them out one at a time and lift the dosed ones out of the pen. Doesn't take long, the grapes vanish in a flash and you know that they've all had the same amount. Done this for a couple of years now and not had any worm problems, try and do mine evry 6 months. (hope you're feeling better now by the way)