I'm wondering, I want to make my vivarium into a bioactive vivarium. So plants, earthmix arid etc. I'm just curious if I absolutely have to put in the small insects that go into the substrate. I know they help with waste etc. but my leo's vivarium is in my bedroom and I don't really want any other insects in it apart from her feed... that I can see. Can I help the plants grow and the vivarium upkeep without the insects? I appreciate any help.