I own a 10 gallon tank with lots of hiding places and plants. Inside are 6 black skirt tetras, 3 or 4 -small- ghost shrimp, and one veil tail betta (Gemma or Gem) . I've had this community for quite a bit now and everyone was getting along quite nicely. Then today, one of the tetras went after Gems fin, and all hell broke loose. Gem started flaring so hard he um, pooped, and then started darting at all the Tetras and chasing them. Help?!?