I have a question about these two. I have a tank consisting of two male guppies, a Plecostomus, and a new betta. Just introduced about 15 minutes ago, my new betta will not leave the guppies alone. He's constantly flaring at them, chasing them around, and generally being a brat. As far as I can tell though, he hasn't hurt them. He's been leaving the plecostomus alone for the most part. I've read that bettas and guppies usually got along well. Is it just being newly introduces that's the problem (and they'll eventually start getting along later)? Or do they need to be seperated?
