screen

I'm trying to figure out how wide I want to get a piece of glass for the top of an Exo Terra, and that relies on figuring out how wide a strip I want to make the ventilation screen. I have a screen window kit from ages ago, which looks like this: The problem with that is these corners...

So I have an old viv I had going a few years back but was 'out of commission' due to moving. It is now dried up with no plants in it. Here is a pic of when it was up and going. Now I plan on fixing a few things up. There are a several key updates I want to get done and hopefully all of you...

i'm modeling a 45 bow front. how important is air flow? warm air rises. frogs will move the air. air is moved by changes in pressure. There will also be a stream that will move air. are the fans necessary?