Worm Food or feeding is an important thing to understand when composting with a worm bin.
For many people composting the kitchen scraps is the main reason they begin a worm bin. Fruit and veggie scraps are a great source of worm food: they produce nutrient rich castings which are great for organic fertilizer.
What do worms eat?
Feeding scraps can have challenges. The main challenges are odor and fruit flies.
I personally put my scraps in the my regular compost pile to allow them to decompose some, then give to the worms when partial composted. This method reduces pests and odor. Not to mention it speeds up the worms composting process.
What can worms eat? Anything EXCEPT: Dairy, Meat, LOTs of citrus, LOTs of onions and dog/cat feces (they contain parasites and bacteria that this cold composting method will not eradicate)
Just about everything else is ok but my recommendation is to MIX IT UP. Do not offer a lot of one thing until you know that the worms will tolerate it well.
Below is a photo of what was under the watermelon from the above photo.
There is also a commercial feed stock by Purina, as an option, I personally do not see the point. Isnt the whole idea to reduce consumer waste?