So I have not posted in a long time but thought I Would at least share my latest cool project. We had taken the tank down and moved all the livestock into a temporary home while we removed the sand bed and decided to convert from Melev's Closed loop design
http://melevsreef.com/how_to_build.html
To a larger more hidden design based on the same Squid type set up.
What we came up with was this duel Squid design
http://www.rcsguns.com/gtoon/ClosedLoop.jpg
As you might expect the rotation of the left right movement is slightly differnt between the top and the bottom which turns out to be a really good thing based on the desire to be a random with flow as possible.
I am going to take a VID of the function tomorrow when I take it down to move it back into the house.
Yes I cut all the holes in the back for the bukheads. Ordered my bit from DrillGlass.com
George