I just brought a couple of water plants back from the river, and they're sitting in a bucket so I can get the bugs off. Among those bugs are about six scuds, and I was wondering if they're good things to have in an aquarium. Said scuds are sitting in a cup of tank water, scudding around. I was thinking of possibly culturing them, then putting a bunch in the tank now and then. Any imput on this idea? I'm pretty sure scuds are harmless scavengers, and I remember having a few in a tadpole tank once. They never harmed the tads, that I could tell.