I currently have 5 RBP's about palm size in a 40 gallon long with a bunch of guppies and some crayfish along with a small feeder tank on the side. However, the RBP's seem a bit cluttered in there and so they are getting SUPER skittish as a result. I am currently entertaining the idea of selling them to get one or two aggressive fish, but I really want something with PERSONALITY. I was thinking something along the lines of flowerhorn, an arrowana, or a mixture of a few things. I also want to still be able to feed it fun stuff too. Any suggestions?