At the moment I am in the process of combining the 90 gallon and 50 gallon reefs into a 180 gallon. Neither of the two tanks are up and running at the moment as the inhabitants were moved to temorary tanks pending the upgrade. The progress on the upgrade has been slow due to the harsh weather we had the past month or so. The attached picture is what my basement looks like at the moment. Hopefully I will be in a position to begin transferring fish and coral to the 180 within the next two weeks.