Im a new guy to the whole octopus thing. Ive done quite some reaserch on it and am going to get a sump ready. Right now i have a 55 gallon with an epreor 400 biowheel filter for up to 80 gallons a seaclone protien skimer, heater, airstone and a power head for waterflow, very fine sand substrate. So basicaly its your run of the mill fish only tank. Ive had it cycling for about 4 months now and i want to upgrade it for an octo. Im going to be getting a 600gph overflow system and a return pump, i have gotten lights specific for octos and will get glass tops i will cut the glass to the exact size of the external overflow system and use a silicon sealent on it. I will also use a sealent on the back ends of the glass tops cause i know how strong those octos are. There will also be a thing to block the octopus from going through the overflow and into the sump ( heard stories about that happening) the ammonia nitrite and nitrate in my tank are 0 the ph is 8.1 and the copper lvl is 0 salinity is about 1.024-1.025. I plan to get live rock in there for the octo to hide in and zip tie the live rock to pvc pipe to prevent the octo from toppeling the rock and i will also use an aquarium safe glue to stack the live rock(yes its cured). The octo i plan to get is a two spot and i will feed it frozen squid and frozen silver sides. I was wondering if there was anything i was forgeting to make the octo feel at home and where i could get a two spot octo.