Carlos, thank you for the amazingly fast response.
So it's been found that on tanks longer than 6", 7" in my case, it's "best" to create two different directional flows? This being created by placing one 1x150 parallel to the tank, on the end, centered, and towards the top of tank while the other 1x150 is placed perpendicular on the other end towards the back, about midline depth? Do I understand this correctly?
With regard to master/slave and apex, your comment, "All you will need to do is swap the controller and you will be all set and ready to go", will CV be doing a buyback or credit to off-set this cost for the controller that becomes obsolete in this scenario? Next couple months? Is that a realistic deadline please?
Lastly, if the 170 was available, would you still recommend 2x150's or would you then suggest 1x170?
Thank you again.