So far my collection is up to 3, but I'm still fairly new. I've got tub/tank setup down and all everyone is healthy. My only problem is I want to hold them a lot. I'd be perfectly content walking around my house doing chores with one of them hanging around my neck all day. So my question is this. How much is too much when it comes to handling them? I looked around the forums a bit and couldn't find anything on it.