# Moonglow Anemone (*anthopleura artemisia*)

The Moonglow Anemone is a beautiful sea creature that glows softly in the dark! It has colorful tentacles that sway gently in the water, making it look like a magical underwater plant.

- **Category:** [Invertebrate](https://www.snappit.app/explore/categories/invertebrate)
- **Rarity:** Common
- **Danger:** 2/5 · Low
- **Snaps:** 4
- **Habitat:** Moonglow Anemones live in the shallow waters of the Pacific Ocean, often found on rocky shores and coral reefs.
- **Also known as:** Glow Anemone, Moonlit Anemone

![Moonglow Anemone](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Moonglow_Anemone_%28Anthopleura_artemisia%29.jpg&width=800)

Photo: Jerry Kirkhart, CC BY 2.0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Moonglow_Anemone_%28Anthopleura_artemisia%29.jpg)

## Appearance

The Moonglow Anemone has a smooth, pale to whitish column often buried, with a ring of delicate, translucent tentacles surrounding a central oral disc. Its disc and tentacles can range from iridescent white to cream, sometimes with hints of green or pink, making it appear to glow softly.

## Taxonomy

- **Kingdom:** Animalia
- **Phylum:** Cnidaria
- **Class:** Anthozoa
- **Order:** Actiniaria
- **Family:** Actiniidae
- **Genus:** Anthopleura

## Interesting facts

- It often lives attached to a buried shell or rock, hiding its base!
- Its 'moonglow' name comes from its soft, pearly, iridescent appearance!
- Some tiny crabs cleverly use its stinging tentacles as a defense shield!
- The anemone's 'mouth' also serves as its 'anus' for waste removal!

## Special abilities

- **Stinging Snare:** Moonglow Anemone has specialized stinging cells called nematocysts on its tentacles that paralyze small prey.
- **Sun-Powered Helper:** Moonglow Anemone hosts tiny algae in its tissues that create extra food using sunlight, helping it survive.
- **Rapid Retreat:** Moonglow Anemone can quickly retract its entire body and tentacles into the sand or gravel for protection.

## Measurements & details

- **Lifespan:** 15 years
- **Tentacle Count:** 150
- **Avg Size:** 5 cm

## Diet & Feeding

This anemone is a carnivore, using its tentacles to catch tiny creatures in the ocean.

- **Primary Foods:** small fish, shrimp, crabs, zooplankton, detritus
- **Foraging Method:** Ambush

## Ecological connections

- **Symbiotic with:** Zooxanthellae (*Symbiodinium microadriaticum*) — Provides energy through photosynthesis.
- **Eats:** Spanish Shawl Nudibranch (*Flabellina iodinea*) — Feeds on anemone tissues.
- **Eaten by:** [Ochre Sea Star](https://www.snappit.app/explore/ochre-sea-star) (*Pisaster ochraceus*) — Preys on anemones in tide pools.
- **Shelter:** Blue-banded Hermit Crab (*Pagurus samuelis*) — Finds protection among its tentacles.

## Traits

- [Solitary](https://www.snappit.app/explore/traits/solitary): Solitary animals live alone for most of their lives, only interacting with others for mating or parental care.
- [Colorful](https://www.snappit.app/explore/traits/colorful): Colorful describes organisms or objects displaying a wide range of bright and distinct colors.
- [Filter Feeder](https://www.snappit.app/explore/traits/filter-feeder): Filter feeders obtain nutrients by straining suspended food particles and small organisms from water.
- [Carnivorous](https://www.snappit.app/explore/traits/carnivorous): This trait identifies organisms whose diet consists entirely or primarily of animal tissue.
- [Marine](https://www.snappit.app/explore/traits/marine): Marine habitats encompass all saltwater environments of the Earth's oceans, supporting an immense diversity of aquatic life.

## Collections

- [Invertebrates](https://www.snappit.app/explore/collections/invertebrates)

## Safety

**Danger:** 2/5 · Low

Be careful not to touch their tentacles, as they can sting!

## Frequently Asked Questions

### How to identify Moonglow Anemone?

Look for fins, arms, tentacles, shells and body symmetry. Underwater light shifts colors, so structure and markings usually matter more than shade. Sea Creature Identifier: upload a photo and compare the visible details.

### How long does Moonglow Anemone live?

15 years

### What does Moonglow Anemone eat?

This anemone is a carnivore, using its tentacles to catch tiny creatures in the ocean.

### Where is Moonglow Anemone usually found?

Moonglow Anemones live in the shallow waters of the Pacific Ocean, often found on rocky shores and coral reefs.

### How does Moonglow Anemone hunt?

Ambush

### How many tentacles does Moonglow Anemone have?

150

### What is the avg Size of Moonglow Anemone?

5 cm

## Where to spot

- [Guard Island Light](https://www.snappit.app/guides/places/guard-island-light) — US · Historic District
- [Schmitz Park](https://www.snappit.app/guides/places/schmitz-park) — Washington, US · Nature Reserve
- [Sandwell Provincial Park](https://www.snappit.app/guides/places/sandwell-provincial-park) — British Columbia, CA · State Park
- [Alki Beach Park](https://www.snappit.app/guides/places/alki-beach-park) — Washington, US · Park

[View all places to see Moonglow Anemone](https://www.snappit.app/guides/where-to-see/moonglow-anemone)

## More Invertebrate

- [Coral](https://www.snappit.app/explore/coral)
- [Crab Spider](https://www.snappit.app/explore/crab-spider) (*Mecaphesa asperata*)
- [Garden Spider](https://www.snappit.app/explore/garden-spider) (*Araneus diadematus*)
- [Brown Recluse Spider](https://www.snappit.app/explore/brown-recluse-spider) (*Loxosceles reclusa*)

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Source: [Moonglow Anemone: Facts & Places to See — Snappit](https://www.snappit.app/explore/moonglow-anemone)
