Hello, everyone. I'm just getting started on this long road, and had a number of tank-related questions to ask. When I say "a number" I mean a large number. I'm thinking of using (probably building for myself) a 75-gallon acrylic tank. I definitely want to use an overflow box, but I don't know exactly what all is involved. it seems most of the sites I've found about them assume a fair level of knowledge that I simply don't have. I've become probably overly paranoid about having small gaps and holes where my future octopus could get his arms caught and hurt. How big should the slots on my overflow box be? I don't want them big enough for him to get through, right? But how small is he going to be when I get him? Can I make the gaps too small for the thing to work? Is that even possible? Also, what are the best methods for keeping the top closed off to curious beasts? Should I just put a layer of glass over it and weight it down? How much weight could an adult octopus lift in that situation? Should I put on a latch with a simple lock of some kind? How large of a hole in the top do i need to be able to feed and care for the octopus without making it too easy for him to escape? Is there a wayto light the tank without getting it too hot and making my acrylic all melty? I know fluorescent lamps don't get nearly as hot as some others, but would it still be too hot? I'm sorry for all of the questions, but I'm very new to this idea and very excited about it. i realize it will be quite some time before I get anywhere with it, but I want to start planning as soon as possible. Thanks in advance for your help, everyone.