It might be sick
take to a local vet to check it up
if nothing works give it a nice funeral
Question is unclear.. Do Goldfish like eating worms? Do Goldfish get worms from eating to much? Or are you meaning another form of Question? Any-who take a guess at your question.
Yesh.
because fish are cannibals
True
feed it more often
No, goldfish should only live with goldfish with a few small exceptions that do not include red ear sliders.
There is really no commensalism that takes place between goldfish and other creatures. Occasionally, goldfish will clean their homes by eating leftover food and waste products.
eat it with vegetables.
Goldfish will eat themselves to death. They never get the feeling of being "full", do not over feed your goldfish just a pinch a day is all it needs.
Plecostomus are algae eaters they are not carnivores. They are also tropical fish so they should never be in an aquarium with coldwater fish like goldfish. If your Plecco is eating your goldfish you must be doing something very very wrong. Work it out. They can live with your goldfish but this may happen, This is because you are not feeding them enough most likely.
Well if she is not sepperated from her eggs she will begin eating them.
You can continue to keep, and care for goldfish while pregnant. Goldfish are not edible, at least not to humans, so as long as you are not eating them, you will be fine.If you mean the goldfish crackers, then those are just fine to eat as well.