JBL Autofood fish feeder screw with lower pitch - for dosing less food

This is the dosing element for JBL Autofood automatic fish feeder. It has 2x lower pitch than the original, so it should dispense about 2x less food. In reality it is even less than that, because the stock screw has a different cross section. It is useful if you have a small aquarium or not a lot of fish, since the minimum setting with stock screw can still be too much.