pink nudibranch...

Such exquisite beauty in the waters of Port Phillip Bay...
Sea slugs really need a more creative, artistic name tag...
They are skilful+can turn compounds from food sources into chemical defences, so they don’t need a shell when they are adults.https://t.co/PfMwIoFB10 https://t.co/5asQS8aHWd

— Gemma Wiseman - on Bunurong land, Kulin Nation (@AuraGem) January 30, 2021

sea slugs...

Who knew that sea slugs could be so bright and colourful...
Apparently, sea slugs range from less than 10mm in length, like Elysia australis, to big sea hares like Dolebella which can be 500mm long. https://t.co/XwUBaXu9r8 https://t.co/DOD7Yy85eD

— Gemma Wiseman - on Bunurong land, Kulin Nation (@AuraGem) January 21, 2021

beautiful mystery of the sea...

Such fascinating, mysterious sea life...
I dragged the photo to Google images, but nothing seemed to match or come close...
Incredible and beautiful mystery... https://t.co/YqnDbQgvO8

— Gemma Wiseman - on Bunurong land, Kulin Nation (@AuraGem) January 14, 2021

UPDATE: I have now learnt that this is a Anemone Phlyctenactis tuberculosa - wandering (or swimming) sea anemone...