I have a 35gal tank that was used for fishes but i want to turn it to a dragon habitat. I know i need bulbs food decor and all that stuff. But i have one problem. The fish tank i have right now has two pretty big rectangular holes on top where the lighting for the fish tank could fit. usually that ive seen most terrarium have a open top with a screen that opens and closes. So my problem is...how can i close both those holes? Are there screens that i can buy? anyone help me with a rig? Drill some holes make my down sliding door or screen? Im up for any ideas to help me keep those holes easy accessed but not let my dragon out.