Hi everyone,
I found this fantastic article that explains anoxic filtration. Perfectly balanced for the science geeks and people like me.
http://www.mankysanke.co.uk/html/anoxic_filtration.html
Every Day is a Bonus!
Here's an extremely raw video showing the construction of a BCB, and my feeble attempt to explain the science, lol. Please pardon my errors in terminology; I did this in one take, in pain, battling the video bombing of one of my sphynx cats.
https://www.youtube.com/watch?v=zbTCPQ9U71E
Every Day is a Bonus!