I'm FINALLY setting up a 150 gallon tank, thanks to a christmas present that'll be enough to finish everything up. Gravel is washed and in place, the tank is full and the heaters are running. As I work on setting up the filter I thought I'd ask for some suggestions of what to put in this tank. This is the largest tank I've had and I want to put a real showpiece monster fish in there. Any ideas on just a single monster fish or a pair of monsters I could put in there?