I just never got into tiny fish. The first fish i ever owned was an oscar, which consequently are my favorite species, so I guess that makes me a fan of "aggressive" fish. But I consider myself a fan of very large fish, and we all know that very large fish eat smaller fish, thats just the way it is.I also have and ornate bichir, and I dont always give my fish feeders, the bichir gets squid cubes sometimes and the oscar gets pellet food. But unfortunately there are people who just want to watch their fish destroy other fish. These are the people who dont know what fish can coexist and which ones cant, then wonder why one gets all beat up or even end up dead. I also love when you hear people that dont know a whole lot about fish talk about how awesome piranha are because of what they THINK theyre like........NO THEYRE NOT.........then they end up disappointed!!! but to each their own!