For 50 years, fishing enthusiasts have looked to the Tetra name to find products and solutions that bring ease and beauty to their home. Whether you're an experienced hobbyist or just starting out, Tetra has everything you need - from a huge range of quality fish feeds and innovative equipment to testing and decorating kits. TetraPond Vacation Food allows you to go out of town knowing that your fish will be nourished while you are away. This nutritionally balanced slow-release food uses a proprietary gel-based diet with natural ingredients. Precise amounts of selected vitamins and nutrients help support the fish's immune system. The block does not cloud the water while it is gone and allows the fish to eat from the block as they are hungry. Simply remove the foil seal and drop the power block into the pond. 1 or 2 blocks depends on the stock of fish you are trying to feed. Have peace of mind the next time you go out of town. (2 pack)