A feeder designed so my Kuhli Loaches can have a place to feed where the larger, faster fish cannot steal their food.Print in as high of an infill as possible to minimize positive buoyancy. I used PLA which I know to be safe for aquarium fish. Before using, make sure you don't have any fish that could get stuck inside.The posts on the bottom portion are small, and should be printed very slowly to achieve adequate quality for strength and tolerance.