I got some hornwort at my lfs
, and it's got little metal bands on it. I'd rather let it float around in a bunch than plant it, but I'm finding mixed things about what's in that metal. Some things say it's harmless, other things are saying it's lead and it will kill all of my fish and the hornwort and possibly my children and neighbors (okay, maybe exaggerating a bit, but OMG LEAD!). Is it safe in my tanks?
If it isn't, alternatives to the metal banded weight that don't involve trying to find a way to get the hornwort to stay in sand?