I bought this jar of freeze dried tubifex worms to give my fish some variety in their diet. They were in cubes & the label said to stick the cube to the inside of the aquarium below the water line. Well the cube would not stick to the glass so I broke it up & floated it. Well this stuff takes its sweet time to saturate & sink. Some of it floated around & got stuck to the end of the filter tube. Also these cubes expanded to quite alot of worms, perhaps too many. Now I can break the cubes down to a more suitable size for my fish but does anyone know a better method of feeding the fish these worms?