Feeding fish can be tricky, especially when you're trying to remember mealtimes. With the selection of fish feeders available via the Instacart app, you won't have to worry about forgetting to feed your fish anymore. Fill your cart with tropical feeding blocks, pyramid, and automatic feeders, and have them delivered to your door in as little as 2 hours! Instacart delivers a selection that includes everything from seaweed clips and vacation feeders to three- and seven-day slow-release fish food.