Hi, I have a community tank with a betta and 3 tetras. We started off with 6 neon tetras although 3 since have died. The betta is unbothered by the tetras and only ever reacted to one on the first day of having the fish, but this was only a brief reaction to the tetra getting too close. Now they can swim right up to him without bothering him at all. I was wondering whether it would be okay to get 3 more tetras to decrease their stress levels. I know that I would have to remove the betta for a bit and rearrange the tank. Is this a wise idea or should I refrain?