Hi all, I've had my tiger barbs for around a week now, and they seem to be doing great! Really active and mostly bother each other. However, I noticed that when they are not chasing each other around, they float in a vertical manner. I've heard that this is just their resting position, but I wanted to hear your opinions on the matter. There is a 1:2 male to female ratio, ammonia is 0, the pH is around 6.5, and the temperature is 77 Fahrenheit. Thanks!