BaoFufc Aquarium Shrimp Foam Support Kit for Dipped or Floating Planted Aquariums, Foam Ball Holder for Aquarium

This is a hollow ball with threaded structure. This foam holder is immersed, you can make it float or sink as you like. Package Included: 1 x Foam Ball, 2 x Castings, 1 x Roll of Crystal Line The size of the foam ball is about 50 x 25mm (D x H). Suitable for aquarium fish etc. Especially good for aquarium shrimp. Put all the foam balls in the aquarium and sink to the bottom of the aquarium, you can also remove all the material from the filter, then use the metal with a fishing line to adjust the height of the foam ball for a floating effect. The substance in the foam ball can be used as a filter material, can filter water and be useful for fish growth. Aquarium foam balls are made of plastic, which is environmentally friendly.