Support immune health and relieve stress to restore aquarium inhabitant vigor. Dr. Tim's Aquatics First Defense Aquarium Stress Relief & Immune Support helps fish adapt to new environments by giving their immune system a first line of defense. Vitamin and immunostimulant-fortified water conditioner helps fish and corals cope with stress during water changes, bagging & shipping, new additions, disease treatments, fragging, dipping, and other environmental changes.
First Defense also neutralizes chlorine and chloramine, buffers against pH changes and detoxifies heavy metals. Use First Defense with every water change, during disease treatments, and when fish are showing signs of stress. 16 oz treats 960 gallons.
Choose from three target formulas: H20-Pure for freshwater aquariums; Reef-Pure for reef, nano & seahorse aquariums; and NaH20-Pure for saltwater aquariums.
Please select your First Defense Marine Formula: NaH20-Pure or Reef-Pure.
DrTim's Aquatics Quick Reference Guide PDF - Use this handy reference guide to select the best product to solve your aquarium situation or problem.
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