Specially designed for efficient soaking and feeding of all types of food using the force of current or waves in the aquarium.A specially designed rotating top nozzle allows the water flow to be directed directly into the trough, where a turbulent flow is created from the surface of the aquarium into the water column. By mixing the water inside the trough, frozen food is thawed and dry food is soaked. The wet particles are dropped and fed into the aquarium through the holes in the bottom of the trough. The feeder works both in waves and in a direct stream of water available in the aquarium from the current pumps. All you need to do is print the parts, glue the handle to the feeder, and it’s ready to use. Enjoy!

How it works — you can find a video here: https://www.youtube.com/watch?v=rwbO4zukzeo