I have decided on getting roaches for my upcoming BD and have purchased to fairly large sized sterillite tubs from Wally World (I only need one but I am a person who likes a backup). I want to put a screen on top for ventilation but am having the hardest time finding where to purchase relatively inexpensive screens for the tubs. I have seen some of your pics of your tubs and they all have screens. If someone could give me a suggestion on where to get a screen so I can get my roach colony (and/or possible cricket container for the short term) going before I get my bd after the holidays. Any suggestions are much appreciative.