OK. So my fiance and I split back in June and when I moved out I left our tank with him. Fast forward and I finally realize that he hasnt been taking care of it and now I would say 75% of the corals and fish that were in there are dead. I am super upset about it and now I need to nurse what is left back to health. I am looking for advice on what I should do to hopefully encourage the growth of everything. I dont even know what is left alive in there or not because everything has just slowly shrunk down to almost nothing. I know I still have a few zoas, and a few mushrooms, but everything has shrunk so much I dont know what I do or dont have living anymore.... I even had a Valentini Puffer that is gone. When I asked him about it he had NO idea it was even missing. I will start by doing 10-15% water changes weekly. I am pretty sure he wasn't doing water changes. It is a 33 gallon tank with a sump. NO I have not tested all the parameters yet, I will be doing that tomorrow. I JUST moved it and wanted it to have a day to settle before testing everything. Plus I am sure moving it will kick start a cycle. Any advice is welcome.