Serious Reefs Fish 101 is the resource for understanding saltwater fish in marine and reef tanks. The goal is to build a clear, practical compendium of care guides covering both the most popular saltwater aquarium fish and the most challenging expert-only species. Each guide focuses on the essentials for long-term success, including detailed reef-safe notes, ideal tank size, feeding and diet, quarantine and acclimation guidance, compatibility and introduction strategies, and natural habitat insights to help every fish thrive in the reef aquarium.