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Dr. Tim's Aquatics

DrTim's Aquatics MARINE First Defense 64oz.

Was: $54.45
Now: $46.28
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DrTim's Aquatics MARINE First Defense 64oz.

Changing the environment of a fish causes stress that robs the fish of essential nutrients and can weaken their immune system.

First Defense is scientifically designed to provide stress relief and support the immune system, helping fish cope with stress due to bagging and shipping from the store to your tank, water changes, new fish additions, disease treatments and other environmental changes.


  • Promotes healing
  • Repairs wounds
  • Helps fish adapt to new environments
  • Supports the immune system
  • Detoxifies heavy metals
  • 100% natural
  • 32 oz bottle treats 1,920 gallons (7,268 liters)
Product code: 8856
Item No. AD-DT123