I use to just put mine on an aquarium screen lid. I placed right side up so there was not lip to stop the mealies from crawling right off the edge. I placed this so it was supported on a couple of lengths of 1x2 lumber over a tub large enough to catch them when they fall. Put a pile of bedding/food in the center and kind of spread it out a bit and they would crawl right over the edge.
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Hope this helps.

BigT
There is a difference between ignorance and stupidity. The ignorant can be taught, stupidity is beyond our control.
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