Securing a tub?

[anatess]

Here's another option. It goes on both long sides. I like this better than the binder clip because I can just open one side and flip up the lid, keeping the other side secured. It does take some effort to open because you have to twist the thing. I used this when my bp was maternally incubating. I had to move mama snake to a tub instead of her glass tank so I can maintain high humidity.