Do I really need lighting?

[Floatybear]

Hey guys,

i own two whites tree frogs, about 9 months old. They are both absolutely fine, living in the medium/ tall exo terra terrarium. (60 x 45 x 60 cm / 24” x 18” x 24” (WxDxH)). Humidity between 60 and 65, temp at around 80. I have a heat mat covering the left hand side of the tank to manage the temperature.

Almost every other terrarium I have seen has lighting set up for the amphibians. Do I really need lighting if the temperature is ok? I am aware that UVB helps with calcium uptake but their food is currently dusted with vitamin and calcium supplement 4 times a week.

Of course, if its needed I will run out and buy some lighting. If you guys would recommend it, which lighting/ bulbs would you use?

many thanks,

Floatybear