I've been leaning toward getting a redtail shark for my community tank. I talked to my lfs about the aggression I was worried about, and they said it shouldn't be too much of a problem. As long as I add a hiding place for it, the other fish shouldn't be bothered. They also said that they'd only be worried about another of its species or a fish that looks like it. So it sounds good, but I'd like to hear any experience/ advice from anyone who owns or has owned them. Thanx~ Angela