What's a best way to entroduce a new product that has been used for years in public aquariums but recently started being used in the hobby of reefing

Free giveaway
The product will be available on
www.fijireefrock.com/ Starting tomorrow
I will give you 3 free lbs for every 50 lbs of
rockspurchase only for the week of Christmas,more than enough product for your
rock work and a little to play with
This product has been in use for few years and already in Canada with some of those who purchased from
fijireefrock
I will be posting a video tonight of how its best used and to best achieve your quality aquascape and never have the hassle of tumbling rocks in your system...
Also for those in Calgary the product will be available for purchase through Concept aquariums
And will be offering a free one lb bag with any amount of dry rock purchased at Concept Aquariums
Stay tunes more and I mean much more to come....