36"W, 34"Deep.
If I run 3 Radion G4 Pro's I should get 36" x 24" coverage per module...
9 puck coverage would be great but holy hell batman in Canada that's over 5G's lol
Either way, it'l take (3) AP700 or (3) G4 Pro's to accomplish this.
You originally wrote that you had a 6.5' tank...
So you need 1 AP700 (mounted regular) or 2 XR30w Pros (mounted front-to-back). You will get better coverage from the Radions in your case, unless you do decide to go with 2 x AP700. You have a weird sized tank, so it doesn't fall into the normal size pattern I was writing about before.