Heres a small list of Hawaiin state laws you will need to break to have that tank. If you live in the US but not Hawaii, add a 1 felony for export out of Hawaii, and 1 felony for import into continental US per item.
Taking or damaging coral, live rocks and coral rubble
State law prohibits the breaking or damaging, with any implement, any stony coral from the waters of Hawaii, including any reef or mushroom coral. HAR 13-95-70
It is unlawful to take, break or damage, with any implement, any rock or coral to which marine life of any type is visibly attached. HAR 13-95-71
The taking of sand, coral rubble or other marine deposits is permitted in certain circumstances. The material may not exceed one gallon per person per day, and may be taken only for personal, noncommercial purposes. HRS §171-58.5, §205A-44
Sale of corals
The sale of all species of stony corals which are native to the Hawaiian Islands is prohibited. HAR 13-95-70