Id be careful putting it in a suitcase. They DO inspect checked luggage sometimes and will remove things that arent allowed. Well, they screen all bags and inspect fishy (no pun intended) looking bags. They took my sand and rocks away from me a couple times, stupid TSA!!
Not sure about it though, it it doesnt get inspected, i think youd be fine. You could bring more than 3oz of liquid in a checked bag. You could also just ship it via fedex or something to the place youre staying
You can ship boxes on airlines too i believe. Youll probably pay out your butt though
Thats like a 5 hour flight i believe? Corals are fine for that long, i know nothing about sw
Just my 2 cents
That was kind of a lot haha