I've been getting so many comments lately about fish chasing, fin nipping, and general chaos in small tanks. In almost every case, the problem comes down to how the tank was set up. Let's talk about what causes fin nipping, why it's so common in nano tanks, and how you can build a peaceful community tank where your fish can actually truly thrive. Why Does Fin Nipping Happen? Fin nipping isn't just aggression. It's often a sign of stress. Most of the time it comes from: Overcr