Aquarium Systems Dr Tim's First Defence

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Keep your marine fish immune system in check with the Aquarium Systems Dr Tims First Defence! Also ideal for acclimating new fish or as fish/coral dip.


  • Dr Tim's First Defence - Freshwater 250ml
    code: 217051 In stock Only 2 left in stock
  • Dr Tim's First Defence - Marine 250ml
    code: 216149 In stock Only 1 left in stock

Product Information

Changing the environment of a fish causes stress that robs 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.

First Defense can be added to the fish bag when acclimating new fish or as fish/coral dip.

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