Dr. Tim's Aquatics First Defense Fish Stress Relief & Immune Support for Freshwater Aquarium Size:4 fl oz UVA light promotes basking and

UVA light promotes basking and feeding behavior

Flicker-free Operation: Designed to power up without flickering

providing you with long-lasting illumination without frequent replacements

which aids in digestion

these toys are built to withstand even the toughest of chewers

Dr. Tim's Aquatics First Defense Fish Stress Relief & Immune Support for Freshwater Aquarium Size:4 fl oz UVA light promotes basking andChanging 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.