Activated in the presence of oxygen. These extend the safe shipping time for Tropical fish that are shipped in cold weather. Please be aware that the rated time is never reached on any heat pack or any brand while sealed in a small shipping container. If the container runs out of oxygen, they also cease to work.
The shopping cart will enable you to get a shipping quote before paying for an order. Simply add the items to the cart, view the cart by clicking on the "view cart" link in the upper left corner and it will enable you to get a total for the shipping before committing to an item.
Learn more about keeping your food fresh in these articles.
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