Thanks for the kind words folk, as Keven said its an L shape so not really 16 straight feet but one turn gets ya the full meal deal..
That school of heniochus are my fav. they stay to gether like glue and when feeding time comes its a site to see.
On the tank cost its really hard to tell. I made the tank with a buddy so it only cost about 500. Most of the equipment I had already (if not all). The buddy that helped me has a custom tank building and install company. He said if it was from scratch with the prework to the house and stand that it would have run about 40 to 50 K