Best Biological Filter Media (Guide & Reviews)

Biological media creates a source of “good bacteria” that is a good element for your tank.
These media come in different types but all have the same basic functions.
It is like a home for bacteria colonies to grow and prosper.
Depending on the type of filter that you have, you will need to choose the appropriate biological media to insert inside your filter to provide a space for these good bacteria to live in.
Some filters are sold with the media and others are not.
Make sure you know what you are bringing home.
Some filters will also require that you not change the media or if the need arises, you need to purchase the same one so that your filter continues to work properly.
Others will be more versatile and be capable to accommodate different types.
Research your filter and make sure that you provide the best media for it.

These are the most common types of media available today.
You want to make sure that you have a lot of surface area in order to provide enough bacteria to grow and flourish.