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What Do Moon Jellyfish Eat?

Writer Emily Cortez

Moon jellyfish are said to be carnivorous because they eat small plankton organisms for their survival. Moon jellyfish eat mollusks, copepods, nematodes, rotifers, etc. in their diet. Moon jellyfish are native to coastal water regions around the world and they are mostly found in the Pacific, Atlantic, and Indian Ocean. They are also found on the coasts of Europe and North America. Moon jellyfish remain close to shore in estuaries and harbors. They also live in brackish and salty water.

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The average size of moon jellyfish is about 2-15 inches in diameter and they are 3 inches tall. Moon jellyfish are very lightweight. Moon jellyfish can live for about six months in the wild.

Aquatic animals

Moon jellyfish mostly feed on plankton. Moon jellyfish can eat small plankton organisms such as tunicate larvae, copepods, protozoans, diatoms, young polychaetes, crustaceans, and mollusks. Moon jellyfish also eat mollusk larvae, zooplankton, phytoplankton-like organisms, small fish, and their eggs.

Moon jellyfish also eat small ctenophores and hydromedusae. Moon jellyfish are meat-eaters. They eat different aquatic animal meat. Moon jellyfish also eat jellyfish which belong to other species, not their species.

Moon jellyfish eat daily. They need food to grow in size and large moon jellyfish eat a lot.

In captivity, Moon jellyfish eat small fishes, crustaceans, zooplankton, and larvae of mollusks and tunicates.

How do they eat

Moon jellyfish have stinging cells in their tentacles which are very tiny in size and they paralyze their prey with them and eat them through their mouth. Moon jellyfish digest their food quickly. Moon jellyfish eat through their mouth and also excrete waste material through their mouths.

What moon jellyfish don’t eat

Moon jellyfish don’t eat plants and algae. Moon jellyfish don’t eat each other, which is part of their community. Moon jellyfish don’t eat walleye Pollock.