Hi, I am a newbie to terrariums, owning some pretty plants (monstera, Epipremnum, mosses etc) and an old aquarium (30x30x50cm) I wanted to set them into the aquarium as opposed to a planter. I don’t plan on keeping any animals in there, which is very much my (likely self-made) issue. Any tutorial on terrariums I watch/read up on suggests to add springtails to consume mold and rotting biomass. But I am not comfortable with keeping these little bugs, because I worry I’ll forget to do maintenance and they all die or that keeping them in an enclosed space is unethical.

Is it possible to maintain a terrarium without springtails? What if I keep the container without a lid? Will the humidity escape fast enough to avoid mold growth?