Wellp, I couldn't take it anymore... I removed the bucephalandras from the tank-in-question. The shrimp ate them down to the roots, which made me pretty depressed as I don't have a lot of money to spend and I had scored some nice ones on silly-sales. I moved them to Betsy the betta's little tank, since there are no shrimp in there. I HOPE they grow back...
OF NOTE, Pearl the betta's tank DOES have a few shrimp in it, and has had buce's in there all along, and those haven't been touched. I don't get it... I do feed the offenders, so why go after those specific plants??