I just purchased a Firemouth (pending pickup) from my Lfs and was wondering about comparability. Now in my 125 I have a copper oscar, 2 Jack dempseys, and a BP. All maybe around 5 months old with a few good inches on them. The firemouth looks fully grown and while I have a separate tank setup cycled and ready to go I would rather it go within the other cichlids. They all loom too big to fit in the mouth of the firemouth but it's definitively bigger than the rest. Would this work out? And I have plans on moving all fish to other tanks when they need it so stocking isn't a issue.