Spotted Jellyfish – In Stock NOW

Spotted Lagoon Jellyfish Now In Stock

We have a limited number of Spotted Lagoon Jellyfish (Mastigias papua) now in stock.

Also called simply, Lagoon Jellyfish or Spotted Jellyfish, they are an extraordinarily beautiful and relatively hardy, small jellyfish. The their semi-translucent bells range in color from golden brown to pale blue and can have hues of green, yellow, orange or pink markings. And, their bells and oral arms are covered with many, many white polka dots. Instead of having a single, centralized mouth, they have many tiny mouths distributed throughout their oral arms.
Spotted jellyfish are photosynthetic. Meaning that they derive part of their energy/nutrition from symbiotic (zooxanthellae) algae that grows inside their body. Their aquarium needs to be illuminated by high intensity, full spectrum light, about twelve hours per day (controlled by a timer). Basically, any light fixture designed for a reef aquarium (capable of supporting coral growth) will work for these jellyfish.
Click here for info on the type of light fixture you’ll need.
These jellies are active swimmers but do well in relatively small aquariums. They become more active when there is food in the water and tend to settle down and expose their (algae containing oral arms to the light) when food is not present.

Quick Info:
Harmful to humans: No
Maximum Bell Diameter: 20 cm (8 inches)
Life Span: 1 – 2 years
Temperature: 24 – 28°C (75 – 82°F)
Photosynthetic: Yes
Care level: Medium
Temperature: 77-80 F
Salinity:32-35 ppm is optimal
Feeding:
Staple diet: Live newly hatched brine shrimp, live enriched brine shrimp
Frequency: Once per day is minimum, two or three times per day is good. Smaller amounts of food fed more frequently is always better.
Supplemental diet:
For small jellyfish: plankton, rotifers (live or frozen), finely chopped krill
For larger jellyfish: plankton, fish eggs, chopped krill
Note: Although spotted jellyfish depend largely on photosynthesis of symbiotic algae for their energy, they still need to be fed (at minimum) newly hatched brine shrimp 1-2 times daily to remain healthy and grow.