EWWWW! This is no bueno, Mama!
I'm glad to hear you're out of the hospital though! Make sure not to swallow copious amounts of Vicodin... unless ya' really need it.
Groupers are aggressive fish. They will eat small fish if they're large enough. I believe they are safe as far as corals go, though.
Also, their really pretty fish as a juvenile, but when they get to adults, they're pretty ugly fish.
Putting in the VorTech was one of the best decision I've ever made for my tank. I have absolutely no detritus buildup, corals and fish all look happy, and the polyp extension is amazing!
I'd definitely recommend one.