i am getting a 9-10 inche pearsei this weekend and it will be going in a 125 gallon with a 8 inche oscar and 7 inche green terror(saum) and 3 5inche red hook silver dollars,do you guys think it will work if i reaarange the tank before i add it or will it be a problem i am setting up a 180 gallon but it will be a month or so to cycle,hoping they would get along until then does any one forsee any problems?