Hi, I am setting up a frontosa growout tank, I would like to mix 10x 1" frontosa fry that I recently purchased with a 3" and a 4" frontosa that I have had for a while. This a 55 gallon growout tank that I hope would serve me for a while as I weed out some of the males. I am worried that the bigger ones would bully the fry and kill them. Can I mix these or should I put the bigger ones in a seperate tank?