Flashing

Definition: Flashing refers to the rapid rubbing or scratching of a fish against objects in the aquarium. It can indicate discomfort, irritation, the presence of parasites, or issues with the fish's skin.

Function in the Aquarium: Imagine your fish doing a quick dance against the rocks or decorations. This behavior might seem odd, but it's their way of saying something is bothering them—like an itch or irritation. It's a sign that you should check for potential issues in the aquarium.