I have a pretty new 45 gal. planted community tank. I fishless cycled it for a month, and it's had fish for 3 weeks. So far it has 12 Harlequin Rasboras, 10 Cardinal Tetras and 2 tiny Bristlenose Plecos. I'd next like to add some Cherry Barbs, as well as a few Cory Cats. My question is about the Cherry Barbs. How aggressive are they? Will they bother the Cardinals?