Ice Jellyfish
Rhopilema asamushi
Ice Jellyfish are the blue-green cousins of the flame jellyfish. Similar enough in fact, that one paper suggested they were actually the same species. This was eventually revoked though, as R. asamushi was found to be a valid species of their own.
Caring for Ice Jellyfish
The care requirements for ice jellies are essentially identical to those of flame jellies. The two species can also be housed together. This species also starts out clear and develops color as they grow and age. Starting out a sandy green, they will eventually adopt an icy blue color, hence their common name.
Stocking density: Lacking tentacles, tangling is not an issue. Most rhizostomate jellyfish do best with plenty of space however. It's best to shoot for a medium stocking density with this species.
Flow: Medium is ideal with this species. They are moderately capable of keeping themselves suspended so they only need a little water movement to help. That being said, they are relatively tolerant of higher flow.
Feeding: Live baby brine shrimp are ideal, live or frozen rotifers can also be incorporated. They eat a lot, so be sure to feed them often. Smaller, more frequent feedings are ideal.
Temperature Range: 68-74 F
Salinity: Ice Jellies benefit from a brackish salinity of 1.014 SG or 20 PPT.
Compatibility with other species: Ice Jellies can be kept with Flame Jellyfish (Rhopilema esculentum). Notably, they do not do well with Marbled or Cannonball Jellies.
Life Stages
