The Nauticus Exchange has been a scam since the outset.

USD$19.4 million has gone missing and now the Co-Founders have taken off after abandoning their offices.

Nauticus Offices Abandoned at 100 Collins Street Melbourne as Johnathan and Bryan Take Flight

https://www.icoinvestigation.com/10528/nauticus-offices-abandoned-at-100-collins-street-melbourne-as-johnathan-and-bryan-take-flight

All the information on Nauticus thus far is here - https://www.icoinvestigation.com/nauticus