Just keep your eye on red mite under the groves in the lid and under the top of the tub.
Red mite don't mind plastic at all. I wash the lid and tub in bleach and swill out after a hatch comes out.
If your brooding in them cut the hole out low down to allow any chicks that jump out to get back in under the hen or she will come off the eggs to brood the cheaping chick.