The circular nozzle assembly makes a great adjustable "spray bar". If you go to the locline website you can request a list of retailers in your area...
you should only need to use a few inches (6?) at the edge of your tank, you use it as an adjustable, aimable output...
run flex vinyl or PVC or whatever type of plumbing you like up to the back edge of the tank. i plan to use MPT male threaded 1/2" fittings to connect to female PVC fittings.
it won't restrict flow any more than any other tubing of comparable ID.