OH RIGHT ventilation.

Keep in mind that this setup is extremely prone to invaders. Gnats, the insects you specifically want to avoid, etc. You are going to want the finest ventilation openings you can find finer than screen door screen if possible.

In addition you will obviously need to make sure you aren't leaving it open, that the plants are clean when you put it together, and that there is adequate light for the plants, otherwise they may become ill and grow mold.