Hi i am wanting maybe a dwarf octo or a bimac? Not sure yet but i have 2 tank options i have a 35 gallon hex and the one i want most feedback on which is my 80 gallon cylinder. I have had this tank set up for 2 yrs with seahorses but i want to do something different now. I want to know if it is even a good tank for an ocotpus or not and since my rockwork is glued to my overflow will that be ok? Any suggestions on what to add as gar as cabes or anything ? Thank you