My green tree frog exo terra habit, bit of help/advice needed

[John]

The mold is probably due to poor air circulation. What kind of ventilation do you have on the lid? As for substrate alternatives, the mold won't do the frogs any harm but if you must use something else, you could try peat moss, or top soil (or a mixture).

[PredatorDrago]

good to know that the mold doesnt harm the frogs, for venting i have the top lid half covered with a light hood and there is a vent just below the front doors. heres the link to the exo terra enclosure im using Exo Terra : Natural Terrarium Small / Advanced Reptile Habitat

this weekend i might have to get a second light hood for heating since its getting colder here