DEFCON 1 (Defense Readiness Condition) is a system used by The US Military to include different levels of alertness and readiness. Tier 1 Reefing’s; DEFCON 1 firstly deploys the top defense saltwater/ freshwater aquarists need at the most critical moments by boosting immune systems of aquatic vertebrates and invertebrates. DEFCON 1 will aid in safeguarding against disease and parasites in fish. DEFCON 1 also arms your fish with immunostimulant compounds and Astaxanthin for improved robustness and intense coloration DEFCON 1 employs feeding stimulants to help entice the most finicky eaters while improving overall health.