There’s something in the water around coral reefs. And that something is fish pee. Although you may cringe at the thought of swimming through clouds of urine, coral reefs wouldn’t be the same without fishes’ urinary benevolence.
Fish excretion may be the furthest thing from your mind as you swim through a vibrant coral reef, but it a plays a vital, though underappreciated, role in supporting the diversity of life under the sea. That’s because it contains two important elements: nitrogen a