Hi everyone! I'm new here and would like some advice on how to restart my 55 gallon saltwater aquarium. I've had it for several years with varying success. However, over the last couple years it has sat with nothing in it except for live rock. The rock has remained for the most part submerged and the filter has been running constantly -- I've done no water changes. I've just added water when it gets too low. I'm finally at a place where I can start it up again and am not sure where to begin. Any advice would be greatly appreciated! Thanks.