About this item 30 Natural Botanicals for Freshwater fish and shrimp provide a healthy tank environment. You only need one or two pieces for a 10-gallon tank. They will help keep viruses and disease-causing bacteria at bay These botanicals will develop biofilm which provides a 24-hour food source to tank inhabitants There is nothing more beautiful than creating a natural looking scape while providing health benefits which these aquarium botanicals will help with; however, do not use the entire bag at one time All items are new and must be boiled before use. Buyer satisfaction is guaranteed.