That's too funny about the Oscar. So far he has has been pretty mellow but I know what you are talking about. May have to just let him tear it up some and see what happens. Also, I know the silver dollars eat plants like crazy so I will experiment a little and see what they like. I have clippings from the real planted tanks that I can spare.
I set it up today and need to clean it some more, but will start cycling it next weekend.