| Care Level | Expert |
|---|---|
| Temperament | Peaceful |
| Reef Safe | No |
| Functional Benefit | Ornamental Only |
| Diet Type | Carnivore |
| Mininum Tank Size | 30 gallons |
| Max Size | 12 inches |
| Temperature | 70–74°F |
| pH Range | 8.1–8.4 |
| Specific Gravity | 1.022–1.025 |
| Stock | Variations | Price | Quantity | |
|---|---|---|---|---|
| In Stock | 1" - Captive Bred - QM Labs |
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Every order ships with our standard 3-hour live arrival guarantee. Need more time? Add our 5-Day Guarantee at checkout.
Full guarantee terms →Ships Monday – Thursday for next-day arrival at your nearest FedEx Hold location — typically ready by 9 AM. We monitor every delivery.
Shipping details →
Monday – Friday 8 AM – 9 PM
Saturday 12 PM – 4 PM
Sunday 12 PM – 9 PM
Healthy, stable animals from vetted suppliers — inspected before packing, shipped overnight. Decades of experience built this model so we can deliver premium livestock at 30%+ less than you'd pay elsewhere.
Moon Jellyfish (Aurelia aurita) are clear, free-swimming jellyfish known for a smooth, saucer-shaped bell and four horseshoe-shaped rings visible through the bell. Their steady, rhythmic pulsing makes them a natural fit for a dedicated jellyfish aquarium where they can remain suspended and on display.
What You’ll Observe:
- Slow, consistent pulsing as they glide in a gentle circular current
- A floating in place look when the flow is tuned correctly for suspension
- Strong feeding response to small, meaty foods offered regularly
- Best viewing under accent lighting, since their translucent body catches light easily
Provide a dedicated kreisel-style tank with rounded corners and gentle circular laminar flow so the jellyfish stay suspended. Keep decor minimal and smooth, and minimize microbubbles so air doesn’t get trapped in the bell. Offer small meaty foods like baby brine shrimp or neutrally-buoyant prepared foods on a steady schedule for best long-term results.
FAQ:
Do Moon Jellyfish need a kreisel tank, or can they live in a standard rectangular aquarium?
They do best in a dedicated jellyfish setup with rounded corners and gentle circular flow that keeps them suspended. Standard reef-style tanks often have corners, intakes, and turbulence that don’t match how they’re typically kept.
Why do Moon Jellyfish sometimes end up against a screen or intake area?
It’s usually a flow-pattern and guarding issue. Keepers commonly solve it by tuning the circular flow and adding finer intake protection so the jellyfish can’t contact or pass through openings.
Is it normal for a Moon Jellyfish to pulse slower at times?
Yes’keepers often report that pulsing rate varies throughout the day, especially around feeding and as the animal settles into the current. Consistent movement tends to return when flow and water quality are stable.
What’s the easiest way to remove leftover food without handling the jellyfish?
Many hobbyists use a turkey baster or siphon to spot-clean uneaten food from the bottom while leaving the jellyfish in the tank. This keeps the display calmer and avoids unnecessary handling.
Can I keep different sizes together in the same kreisel?
It can work, but mixed sizes can make feeding uneven. Some keepers separate sizes temporarily so smaller individuals get a fair share during feeding, then reunite once they’re closer in size.
Shipped with pure oxygen and temperature control so it arrives stress-free and ready to eat.

