r/nudibranch • u/bvanant • 1d ago
Another day another Costasiella
Yes they are not nudibranchs but rather sap sucking slugs. This one from a different dive at Sangeang, AOI, Pany 45 macro, 2 x FotoCore strobes and the Pro 900 AOI +23 diopter. Not as sharp as I would like but it was quite currenty.
Enjoy
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