Instructions
Feeding Your Spider
Purchase feed crickets, meal worms or roaches from a pet shop to feed a large spider like a tarantula. Keep the prey in a separate cage with plenty of nutrient rich food, such as slices of raw potato.
Catch smaller insects to feed spiders which are too small to eat the large insect prey available at pet shops. Look for houseflies trapped near windowpanes, or leave a bit of food outside and use a cup or other container to trap flies.
Feed your spider by releasing live insects into its cage. Do this a couple times a week - spiders don't need to eat every day.
Keep a small, very shallow dish of water in the tank as well. Depending on the size of your spider, a bottle cap should provide enough water without creating a drowning risk.
Periodically clean the spider's cage to remove husks and remnants of dead prey.
How to Feed a Spider
Spiders can make for entertaining, low maintenance, inexpensive pets. You can purchase large spiders such as tarantulas or wolf spiders, or you can catch a spider in your home or in nature and relocate it to a small terrarium. Because spiders come in such a wide range of sizes, make sure that you're feeding your spider something appropriate for its size. Tarantulas and other large spiders can eat crickets or roaches, but smaller spiders will do better with small insects such as flies or beetles.