Well recently I had a rather large disaster on my hands when a buddy and me dropped my big tank while moving it. But I just found a home for the last of the fish from the big tank and now my grow out tank is my only tank. So I have always had large Predator fish. Well now that my arrow and rays are gone i want a slightly more laid back tank. I was thinking a electric blue jack Dempsey and a green terror. But the one problem I have is I have a 12-14 inch id shark that I have had for 5 year and i don't want to get ride of it. What do you guys think I should but in this tank. I want something with nice color and gets a descent size but will be fine in the 125 and not kill the id shark. any help would be greatly appreciated.