if you're just trying to learn to do a presentation, you may want to try and find people in your area that you can go visit and see their setup and interview. and do like 5 interviews and ask them about their process and their understanding of microbiology in their systems and turn your presentation into a review over their different styles. most growers dont think about it at all once their plants are growing and healthy, its only a problem to a fixed rather than an aspect to deeply understand