Well isn't it the way? Once you finally get everything calm and settled some new problem arises. I have grown a Nile Tilapia from a tiny 1 inch together with a slightly larger JD. Time passes and now the Tilapia is a fair bit larger than the JD and was still 2nd in command. Well within a few hours the position of power has shifted and two fish which survived together for years are not getting along. My JD is stressed to the max and went from fine this morning to pretty rough. What do you think? Keep the JD or the Tilapia? Blue Nile Tilapia are not uncommon in food fish shops but kinda unique for a pet. The JD is far more attractive but really quite common. I'm kinda leaning towards the JD but I dunno for sure so I thought I would see what the general consensus is amongst other hobbyists. What would you keep? They are both my pets so it is hard to let either go.