1. Suitable for freshwater and saltwater aquariums
2. Easily detached bio-membrane improves metabolism of beneficial bacteria.
3. Recyclable for plant soil use.
Fired by high temperature so as to encourage the growth of nitrifying bacteria. Anti corrosion and provide water of the premium quality for your fish tank. No more hesitation, get one now. Dimension: 2.0 cm of length x 2.0 cm of dimeter Extremely porous ceramic media for efficient biological filtration. They are used as the biological media in salt water and fresh water aquariums as well as ponds. Clarify your water naturally and cultivate beneficial bacteria with these porous ceramic media! Bio balls with their immense surface area per square inch serve as great hosts to beneficial bacteria in aquatic biological filtration systems. They are really simple to use: place into a mesh bag and drop into the filter. Do not clean the bio balls once they are cycled, or you will risk killing off all the beneficial bacteria that you need to filter your water. Simply Rinse and Use Dense Hole Structure for Nitro-bacteria Perfect for Freshwater and Saltwater Fish Tank, Mini-reef Aquarium or Ponds. Easy Maintenance. Filtering effect will be improved greatly.