The book popular amphibians by Philippe de Vosjoli is a good read on these guys

You don't want to use a glass lid, no ventilation and doesn't let the UVB pass. The 'nose rub' you've seen was probably from the frog being kept in tank that was too small. Ranid frogs love to jump, so go big as possible. I personally would go larger than a 20 gallon. In regards to lighting, they're diurnal heliotherms, so I would give them some UVB to be safe because they'd be exposed to it in the wild. Aleast 5% when placed over a mesh top, remember it filters out up to half of the UV.