Suspension design, buoyant floating rod ensure the feeder ring always floats above the water no matter how high or low the water level goes. come with a bloodworm feeder cup for bloodworm cleaning, thawing and disinfection. Multi-function - floating fish feed/red worm feeding/fish food thawing frozen/live fish food cleaning/fish food measuring cup, the ring holds dry food while the cone holds live worms for your carnivores, let the ring and cone float freely or use the suction cup for a restricted feeding area. The aquarium feeder ring keeps food in place while your fish eat their fill, not only preventing waste, but reducing the amount of food left to rot - this stuff can really ruin the quality of your water. Fixed region feeder, let fish in their own “bowl” eat fish food, fish lovers practical gadgets. Keep your aquarium clean, fish feeder rings keep food in a certain area, it doesn’t end up scattered all over the place, or pulled into the filter, allowing more to be eaten. forcing