Hello- My two ducks love tomatoes and worms, of course. How many/much is too much? I usually give them 3-4 cherry tomatoes each per day. They free range in the backyard where there is a stream (I assume they sometimes catch the minnows) and my garden and an abundance of worms. They don't eat a lot of leafy greens- mostly their layer pellets, worms, and tomatoes, and whatever they catch or nibble on in the stream. Do you suppose this is a decent diet? Should I add to it?