Mo
I've just read a tip elsewhere.
If using Flubenvet you have to mix a teaspoonful of powder (5g) in 4kg of feed. Or similar,enough feed for a week.
The advice was to put a little vegetable oil on the pellets first, so that it sticks. When I did mine I wondered, as there was so little powder, how much of it ended up on the bottom of the bowl, or on the ground.
They are laying better since I did them, so they must have got some.