Dr Roy Yanong is a Vet with the University of Florida and their Tropical Fish Lab. Among many other things he hosts a radio show called Aquariumania. He recently interviewed me and it's now up on their website where you can listen, download etc. It is episode 22 -- Here is the LINK And a summary of the interview Episode 22 - The Good, the Bad, and the Not-So-Ugly Truths about Aquarium Bacteria Most people think of bacteria as something that will make you and your pets sick. In reality, bacteria play a critical role in healthy fish, ecosystems, and well-balanced aquarium systems. Dr. Tim Hovanec, the founder of Dr. Tim's Aquatics, has been working in the aquarium and aquaculture field for decades. His graduate research revolutionized our understanding of biofilter bacteria, and over the years, he has designed numerous bacteria-based products that solve many common aquarium problems. Join us, as we discuss the good, the bad, and the not-so-ugly truths about aquarium bacteria with Dr. Tim.