Dr Tim's Freshwater First Defence 4oz - (240gal)

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.

Often, fish are not fed much before shipping so that their waste does not pollute the shipping bag but this can further weaken their immune system.

As with people, a weakened immune system means a greater chance of the fish become sick with Ich or a bacterial infection. The mixture of immunostimulants and vitamins in First Defense have been demonstrated to help support the immune system of fish so they can fight off diseases.

First Defense also contains buffers to help maintain the water pH. Further, First Defense detoxifies heavy metals and removes chlorine and chloramines.