i understand your reason for concern, i was fortunate on my first reef tank, 120 rr w/sump livestock and stand an MH lighting, the tank was only 1 yr old, got a great deal on it, im hoping to find the same on a 180, fortunatly there is no hurry at all, so time is on my side! id love a new tank, but with one son just out of college and another one going in the fall i have to try and save whereever i can!!