I have just purchased a small greenhouse and have it set up in my sewing room to overwinter a few select plants-ie: Greek Columnar Basil, Henna Coleus, and some others I love too much to lose. I have a ceiling fan running in reverse to circulate the air, and 4' fluorescent lights running. I want to try to avoid insect problems-namely fungus gnats. I remember reading of watering with Chamomile tea & peroxide- can someone refresh me as to the details? Thanks- Jo All help is appreciated!