Hi Ale..... bugger you are onto me.Firstly......the million dollar reefs built in Queensland are from Government funds. They don't have a licence.Most of you do not have the biological science background that I have, and it would take a page or two to explain, so I will provide an example to ponder. And yes I know I am arrogant.Lets for the sake of this argument,that over-night in SA waters all of the under water habitat such as artificial and natural reefs were removed, lumps, bumps and other things. What would happen to fish populations ?So by adding habitat, the reverse applies. Go read Dar