Upside Down Jellyfish

Cassiopea

Share Your Photos

Be the first to contribute photos or videos of this fish.

Your profile will be tagged on all media you contribute.

Suggested Tank

30+ gallons

Max Size

12 inches

Difficulty

Medium

Temperament

Peaceful

Description

The Upside Down Jellyfish, known for its unique behavior of resting on its bell with tentacles facing upwards, is a fascinating marine creature often found in shallow coastal waters. It relies on symbiotic algae within its tissues for nutrition, which requires exposure to sunlight.

Reef Safe

Yes

Environment

Requires a well-lit tank with stable water parameters, moderate flow to ensure oxygenation, and a sandy substrate to mimic its natural habitat.

Behavior

This jellyfish is relatively sedentary, often found lying on the substrate with its tentacles facing upwards to maximize sunlight exposure for its symbiotic algae.

Information might not be complete or accurate. Help the community by suggesting corrections.

No Reviews Yet

Be the first to review this fish.

For Sale

No active listings found

Price History

No price history available

Write a Review

Upside Down Jellyfish

Cassiopea

Rating is required
Please select whether you would buy again
Review is required

Suggest an Edit

Download the ReefBay App
[email protected]
|
©ReefBay 2026

Join The Community

Create an account to contribute to the community

Or continue with
Sign in with Apple
Or continue with
Sign in with Apple

Prefer our mobile app?

QR Code

Scan to download the app

Download ReefBay

Scan the QR code with your phone to download the app

Download ReefBay QR Code

Available on iOS and Android