McFreakery on Instagram: "Fish behavior during the day mostly comes down to light, safety, and food—and it can look very different depending on the species and habitat. Most fish are more active in daylight because sunlight helps them see prey and avoid predators. Reef fish, for example, spend the day swimming openly, grazing on algae, picking plankton out of the water, or hunting smaller fish and invertebrates. You’ll often see them schooling, which makes it harder for predators to single one o