I'm doing my preliminary research for keeping cuttlefish, and I'm at the stage where I'm looking for a good species to keep. The tank I have on hand is 135 gallons (36wx24dx36h), and what I'm reading, mostly about S. officinalis and S. bandensis is that officinalis is too big for 135g, and bandensis would be like a speck in that tank. I'm ideally looking for something large enough that I can train it to manipulate objects with its arms, in the medium-size range. Do any of you know of some species off-hand that can guide my research? If it turns out that I'm really just limited in my choices by that size tank, I'm not so far along that I can't ditch it and get a larger one. Thanks!