I've become the guy that I didn't understand 25 years ago when I first started the hobby. The guy with a large tank with one solo fish lol. Over the years I've kept just about any and everything freshwater with at one point 15 tanks running. Still love the hobby but not as passionate as I once was so I got rid of just about everything and decided to just keep my 300 and one fish. I have a 18-20" Dovii that's I believe is the reincarnation of Freddy Krueger, he's killed everything lol. I also have a glass banging 10" Aimara in a growout 75 gallon that I know I have to move to a bigger home sooner than later. I'm just at a crossroad on which one to pick to keep in the 300. I'm going to set up a poll below, first fish to get 60 votes is the one I'll keep.