In the Emotions Aquarium, everyone has big feelings--and Peaceful Pufferfish is always there to help his friends find their calm. Whether he's drawing with Sad Seahorse, stretching and singing with Optimistic Octopus, or taking deep breaths with Grumpy Guppy, Peaceful Pufferfish knows just what to do. With playful rhymes, bright and cheerful illustrations, and fun strategies for emotional regulation, this underwater adventure is a splashy celebration of caring for your feelings and helping others do the same.