Personally, I think you really need to setup any marine tank the same - just because you can collect animals for free at the local beach, doesn't mean you should care for them any differently.
Would anyone buy tropical fish or corals, and throw them in a tank the same day with some beach water, no cycling of the tank, and throw in some incorrect and possibly toxic rocks, sand with who knows what in it, and cool them intermittitly with ice bottles, etc.
As per Living arts article, a bit of patience and correct advise goes along way.
No offence meant, something I'm quite stubborn about tis all.