A very informative video by Mike from DIY Aquapros.
   / diyaquapros  
Biohome filter media, foams and moving bed media: http://www.filterpro.co.uk
FilterPro website has links to main Biohome distributors around the world (flags at the top of every page are direct links)
Check out the 'Pimp My Filter' series of videos on my channel here:
https://bit.ly/2HZsWXz
There are loads of filtration videos on my channel so you're not going to be short of filtration knowledge if you watch a few of those.
Thanks for watching and appreciating this video.
Happy fish keeping.