BIO BALLS - BUY IN BULK AND SAVE $$$
These little plastic bio balls have TONS of surface area for the growth of bacteria for filtration.
There are approx. 80 bio balls per gallon.
They are used as the biological media in salt water and fresh water aquariums as well as ponds and are really simple to use: place into a mesh bag and drop into the pond or filter.
Do not clean the bioballs once they are cycled, or you will risk killing off all the beneficial bacteria that you need to filter your water.
Another use for bioballs: fill your tank's overflow box. They will keep your snails and other animals from going down the overflow as well as quiet the overflow greatly.
Promotes gas exchange and increases oxygen level
Will not clog with organic matter
Totally inert and non-leaching
Safe for use in fresh or saltwater aquariums
Cultivates nitrifying bacteria
Use in biological filters and gas exchange reactors.