OK, I've been waiting YEARS to raise cuttlefish. I got a couple cuttlefish for a neuroelectrophysiology lab project I did in college back in the aughts and it got me hooked on reefs. I got specimens from the UT medical branch in Galveston where they raised cuttlefish for research only. Over generations they got bigger and longer lived individuals, but they really only live a year and a half in the wild.
Unfortunately, they really can't be raised in a traditional tank, they need a soft-sided tank like an above ground pool with a frame kinda thing. Otherwise when they get spooked they jet into the wall and get "butt burn" and usually die from an infection. You're better off with octopus, but ya better have a good lid.
Tank looks sweet!