Hello Ceph friends. After lurking for 4 months while our tank cycles we found an octopus. I am a nervous wreck and though I am confident it will be happy in the tank I am not completely sure we have it baby proof. It is from That Fish Place in Lancaster PA and its given ID is vulgaris though seems small so maybe a young one. Its head about 2.5 to 3 inches long with legs about 5 to 7. right now it is in a plastic critter carrier with a ceramic bird house to hide in within the larger habitat, which is similar to the situation it was in at the store.I need to I fast track a few remaining Octo proofing details. It is very active and does not seem shy. It spends most of its time outside but has entered the house numerous times exploring. We have the top of the tank sealed but my main concern is the vertical slots at the top of the corner over flow. I feel like they may be just a touch too wide. A 16th of an inch. Is that cutting it too close? I just can't think of a way to use a finer mesh or sponge that would not slow the water flow too much.