There are good tanks to choose from...or make your own. Hook1 sells the Retrofish instructional dvd.
I got a custom proto tank from Jason Morton for my Tarpon T160i and I am stoked with it. It's a light weight, low profile & high volume tank...and the hatch is HUGE so getting bait out is easy. No corners so the bait doesn't get worked. (Kept my baits healthy and happy!)
What ever works for you!