Hi Everyone :) Im getting an O.Vulgaris this weekend. I have a Red Sea Max tank - does anyone have any ideas on how to octoproof it? there is about a 3cm gap between the tank and the entrance to the sump (which obviously we dont want him in) I was thinking a bit of fly screen but then im not sure how to secure it so he wont want to pull it apart! Any ideas would be APPRECIATED GREATLY!!