I would personally use a drainage layer, that way if you happen to over water your roots aren't rotting in saturated soil.
Ahh, so the saturated soil could cause the roots to rot if the water isn't drained. I never thought of that. Hmm... Going to have to come up with a way to remove all the soil with the inhabitants and put in a drainage later! This will be fun haha!
~~~~~~~~~~~~~~~~~~~~~~~~~~ I own:
1.0 Reduced Normal Ball Python [Peter]
0.1 Harlequin Crestie [Amelia]
~~~~~~~~~~~~~~~~~~~~~~~~~~ The other half owns:
1.0 Orange Dalmatian Crestie [Archie]
0.1 Golden Dalmatian Crestie [Banana]
~~~~~~~~~~~~~~~~~~~~~~~~~~