That’s what I was thinking, an octopus that doesn’t get too big shouldn’t be able to lift a decently sized lid. Anyway, I’m still not going to underestimate it.I just realized this is a dwarf tank so a bit of weight should be fine. The biggest concern will be any openings not covered by the lid. One way to help minimize escape issues would be to lower the water level to between 1.5" and 2" from the top (if you can, this is not always viable).
Awesome, any guess right now is a step in the right direction. It would be perfect if this turned out to be a dwarf.Pictures can be deceiving but my first impression from the arm length and thickness compared to the mantle is that this is a dwarf species.
As with all fish and critters I expect it to take a little while to get used to me and my habits and the feeding schedule.The first month should still be considered acclimation so you will see behavior changes. Try offering a very small piece of shrimp (about the size of its eye) at first. Be sure you remove any uneaten dead food as it can cause an ammonia spike.