Overview
The Blue Blubber Jellyfish (Catostylus mosaicus) is a advanced saltwater species known for its blue-brown coloration. Blue/brown. Mid.
Origin & Appearance
Origin: Indo-Pacific.
Colors: Blue-Brown.
Body Shape: Jellyfish (bell-shaped). Typical adult dimensions: 35.0 x 35.0 x 17.5.
Sexual Dimorphism: N/A; colonial.
Tank & Water Requirements
| Min Tank Size | 53 gallons |
| Temperature | 72–79°F |
| pH Range | 8.1–8.4 |
| Water Hardness (GH) | dKH 8-12 |
| Bioload | low |
| Oxygen Demand | medium |
| Plant Safe | yes |
| Aquarium Position | Mid |
Behavior & Activity
Active pulsing swimmer; stronger bell contractions than moon jelly; more directional movement; photosynthetic
Speed: 15/100Aggression: 1/10diurnalSchooling (3+)
Breeding
Complex; polyp/medusa lifecycle
Common Diseases
💊 Temperature sensitivity
Expert Notes
Blue/brown; hardier than moon jellies