Aspen leaves

[John]

I don't think you'll have a problem using them in terrariums but they are thin leaves - they will rot/break down quickly. Most of the leaf types we use are thicker/tougher/more resilient under terrarium conditions.

[Voltage]

I do know how fast they break down. The aspen trees we have here outside drop leaves on the ground and there's probably a good foot of decomposed leaves, which IMO is good for the plants. I won't have to worry anyways because I basically have an unlimited, fast supply.

[SludgeMunkey]

Aspen is fine to use, just give the leaves a good inspection for hitchhikers. It may be wise to let them dry indoors for a few days and re-wet them for vivaria use.

To sterilize them to help prevent fungi from sneaking in, air dry the leaves in a brown bag for a few days, then put them in a glass bowl covered with water and microwave them on high for five minutes.

[Voltage]

Thanks. I checked for hitchhikers and found none on what i've already put in there, but I used leaves from a younger tree across the yard and they had mites and aphids all over them. Didn't use those I let them bake in the sun for the first day and put them in a seed starter for the next day (re hydrates them and heats them up to 200f out in direct sun)

[SludgeMunkey]

Brilliant! Never thought of using a seed starter! I am stealing that idea!