We do sell real Marshall Island rock, we buy it direct from the country. We
have know the guy that started up Marshall Island for many years. It's a
small country and not a lot of rock comes out of there. Premium Aquatics
imports in more then 50% of the rock that the entire USA gets. So we get a
very good price. We are one of the few that can buy direct.
Most likely the pet stores are buying Marshall from a wholesale, someone
similar to us that brings the rock in and then resells to them. Since they
buy smaller amounts they have to pay more. They probably buy 200-300lbs at a
time, where we'll buy 1000-1500lbs at a time every other week. We would buy
even more if they could keep up the supply, but there is only one flight out
of Marshall a week, so you can only get so much.
It is very expensive rock and they did just have a 25 cent price increase
which we haven't adjusted for yet, so our price might go up, but would only
be 25-50 cents at the most.