We purchased a betta from the pet store a week ago. We decided to get a 10 gal aquarium for him and Tetras. He has been in the aquar. for a week alone and last night we added the Tetras which we thought would be fine based on research. Wrong answer! He nips at them, pushes them out of the way if they come over to me by the tank, nips at them if they try to eat and is just an over all bully. With all the reading I have done I thought Betta's and Tetra's got along. Anyone else have a bully like this?