Substrate//Tank Maintenence

[Sierra]

Exo Terra : Plantation Soil - Brick / Tropical Terrarium Substrate
ps. I am using plantation exo terra substrate.

[John]

Something under the gravel: That's up to you. It will provide a drainage layer so the soil is not soaking all the time, yet maintain a nice consistent level of soil humidity.

How often to change the substrate: Depends on how big the terrarium is, how much substrate you use, and how many frogs you have. If you're good at spot cleaning, I would say several months, or more, as a general guide.

To remove the spots: Vinegar. Take the frogs out before you use it - the vapors are irritating to them.