Biological filtration refers to filters that make use of bacteria to break down wastes in the water into substances which are less toxic to the inhabitants, in a process known as the nitrogen cycle. Examples of some biologic filters are under gravel filters, sponge filters, and trickle filters. Biological filtration is imperative to healthy fish.

About LifeTips

Now one of the top on-line publishers in the world, LifeTips offers tips to millions of monthly visitors. Our mission mission is to make your life smarter, better, faster and wiser. Expert writers earn dough for what they know. And exclusive sponsors in each niche topic help us make-it-all happen.

Ask a Question

Not finding the advice and tips you need on this Aquarium Tip Site? Request a Tip Now!

Guru Spotlight

Mary White

Ever wonder how you could make your life better and more fun? So have tens of millions of fans who have turned to LifeTips for answers over the past decade. We keep the tips, advice, books, podcasts and writing services flowing, so you can keep your life and business growing in the right direction. Upward!