Yes, and there are many species of isopods commonly referred to as pillbugs. My experience with the common species in the Midwest was taht they relish orchid roots and also other select species of plants while leaving many plants alone. I wouldn't rule out egg eating either. Millipedes are also detritivores and I've seen them eat frog eggs. If you want to add isopods, I suggest you obtain a starter culture from another frogger who can vouch for the species they have.eukaryote said:For what it's worth, I've had problems with pill bugs eating parts of orchids, especially roots and flower buds. The plants weren't in a vivarium however, and it may have been just a result of a lack of better food for them, but they definately can and will eat plants if there is nothing better around.