The cleanest way to feed your fish with blood worm or tubifex is with the use of this cone feeder.
This feeder cone is great for fish learning to take live foods and for keeping your aquarium a bit less messy from feedings. The cone is designed to keep food in one area for fish to easily access.
It is made out of clear, break-resistant plastic and has a suction cup on one side so you can easily mount it inside your aquarium. Mainly used for feeding live blackworms, frozen blood worms.