Oh, and don't forget about the 50-100$ air freight that you will pay per 100lbs.
So... after a few loss, and few pests death, plusses 75$per 109lbs shipping weight, you price will be up there. Plus electric, water, medication, plus plus plus,
A 50$ Mari coral will cost you 75$ after shipping, qt, medication, electric, and dead loss, and then you can sell it for that to break even... Jack up the price to make money if people buy it, or spend more money to grow it out for 6 months to a year to have a few frags and a mini colony to keep and frag regularly... so your cheap coral will cost you over 100$ a year after receiving it... that'd a lot of 10-20$ frags to get even and start again.
Thus, things arnt easy or fast.. most everyone goes in the hole at first, but its what happens there determine what lies in the future..
And you have to think business and not hobby.