How to make a automatic fish feeder?
Use a sharp knife or pair of utility scissors to cut the bottom off the plastic bottle and take the cap off the top. Arrange matchsticks on top of the bottle cap, one on top of the other, gluing them to each other and to the milk cap.Place the plastic bottle on top of the matches upside down so the mouth of the bottle is right on top of the matches – glue it in place. Fill the plastic bottle with your choice of fish food. Place the cell phone in the bottle after setting it to vibrate mode. Put your feeder in place above your tank – you can hang it from the ceiling or wall using a plant hook or attach it to the back of the tank. Call the phone to feed your fish.