I am in the middle of constucting a pink toe cage, by tipping a ten gallon aquarium on its side and making a hinging glass door. For ventilation, there will be a 10x4 screen at the top. I dont want the taranulas tarsal claws to get stuck in the screen. To avoid that, should I get screen too fine for it to get stuck or screen that it wide enough to just pull its foot in and out without it getting stuck? Also, could it gets its whole leg stuck in the larger screen? :? Which is easier to find and what will work the best?