So everyone has built monster tanks. Theres no question there are some great designs out there. But when it comes to a sensitive fish, like fw rays, some conciderations should be taken into account. I know they need more foot print then depth, and octagonal corners (135 degree) so they don't get themselves pinned in a corner. But what else should be considered? Specifically for the breeders, if you could rebuild you ray tanks, what would you do differently?