I had just picked up about 5 young chocolates and put them in a small five gallon tank. They did well for a few days and then I think I may have over fed them as two died and the others became sluggish. I then decide to put them in my main tank, a 75 gallon tamk with 3 large convicts, a severum, and a Jack Dempsey. I have a lot of rocks for hiding and I think the fish ar hiding most of the time, but they are a live. My concern is will these fish actually be able to find food or will the bigger fish prevent that?