I am familiar with the seeds being dangerous. I owned a couple of rats several years ago with a roomie and she always insisted on diligence in preparing their foods. So I actually picked the seeds out before I gave her the rind so I could let her chew on it without having to worry about just that.
As far as chewing on plastic, I used holes that were small enough that I didn't think she'd be able to get her teeth at the edges to gnaw easily but I do intend to keep an eye and will upgrade her as necessary.
Thank you guys for the tips though! Those are two important things for a newbie rat owner to know.
From the looks of it, Whitey needs to do some chewing though. I don't know if rat teeth are like rabbit teeth but I assume they also need to wear their teeth down and hers look longer than they probably should be. I've given her cardboard to chew on but is there anything else you guys might recommend that would help wear her teeth down?
Anyway, just finished a fourteen hour shift, so it's time for me to pass out.