$9.50 Postage! Fast Flat Rate - Order $75-$150 and pay just $5.00 Delivery - Order over $150 and Receive Free Shipping *Conditions Apply

Click here for more details

Dr Tim's Aquatics


Dr Tim's Aquatics First Defence H2O Pure 475ml Treats 3634 litres

Dr Tim's Aquatics First Defense reduces stress promotes healing, repairs wounds, fights disease and contains a mixture of vitamins and immunostimulants.

First Defense contains a mixture of vitamins and immunostimulants that work together to help fish and other aquatic organisms adapt and cope when introduced to new environments and stress that can occur with poor water quality conditions.

  • Reduces stress
  • Helps fish adapt to new conditions
  • Revitalises the Natural Slime Coat
  • Promotes healing 
  • Repairs wounds
  • Fights disease

  • First Defense also neutralises chlorine and chloramine, buffers against pH changes and detoxifies heavy metals.

    First Defense should be used when doing partial water changes, during disease treatments and when fish are showing signs of stress.

    First Defense Fish Stress Relief for Freshwater Aquaria

    DrTim's First Defense was developed to help fish adapt to new environments by assisting the fishes' natural immune system.

    Environmental Changes Cause Fish Stress

    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.