Plants often come from pet shops attached at the bottom with a gray metal
clasp. This occurs with plants like Elodea (sp?). My question is: Are
these clasps dangerous for the fish? I have just begun to get into a new
aquarium with my children. I've had them in the past, but can't seem to
remember anything about this and can't find a reference in this or other
newsgroups or on the web. Thanks, in advance, for your help!

I use them all the time, I've even made some out of some other lead... same
lead that is used for plant weights...