Will the mother goldfish eat fry?

Goldfish are opportunistic feeders, which means that they will eat anything that is available to them. This includes their own fry if they are not protected. This behavior is also called filial cannibalism and is very common in the goldfish as there is more availability of food sources like algae, other types of live foods like worms, other species, plants/plant-based food sources when compared to the availability of available fry as a whole