The four remaining animals from the 2019 deepwater creature batch from Japan and Australia. IDK what happened to the octopus, but the rest of the animals (sea dragons, sakura basslets, shaw's cowfish, ornate cowfish and flower cap jellies) has perished. Popeye catalufa and eyelight fish doesn't count since they came later in 2021.
@Fargusno the shaw's/ornate cowfish also perished. For the GPOs, unfortunely, I believed they died. BTW, I'm wishing JAQ to acquire japanese spider/king crabs.