Biological filter media..Whats the best out there?...
- Thread starter el wadd
- Start date
I second that, I use 1ltr of Eheim Substrat Pro in all my external filters, seems great stuff. I think its slightly different from the Ehfisubstrat though.
http://cgi.ebay.co.uk/ws/eBayISAPI....MEWN:IT&viewitem=&item=320102916272&rd=1&rd=1
To me, they're all the same (Biomax, Matrix, Ehfisubstrat, etc.). Just use any media w/ a lot of surface area for the beneficial bacteria.
the big difference between Ehfisubstrat Pro and Ehfisubstrat is that Pro is better engineered for flow, and resembles a chocolatey cereal that my daughter loves, and now i have to be careful i dont leave any out. 
im not speaking from experience or anything though. 
im not speaking from experience or anything though. Coco puffs huh maybe kix? LOL!
I just set up my eheims with the standard Eheim Ehfisubstrat, as you stated the pro is designed for better flow - the pieces are rounded and they claim it prevents clogging/compacting. Hopefully that really isnt too much of an issue; or I'll have to change out to pro one day myself.
The advantage of "thick" bio-media like Matrix, Ehfisubstrat, CellPore, etc, is that there is the potential to produce anaerobic bacteria that reduces nitrates. If the center of the media receives just a small amount of oxygenated water, facultative anaerobic bacteria forms. This type of bacteria breaks down nitrates into nitrogen gas. This bacteria sometimes forms in deep sand substrates. However, if the substrate is too compact and the depth too deep, you may totally deprive the bacteria of oxygen This condition may then form a potentially dangerous strict anaerobic bacteria. That bacteria also reduces nitrates but releases poisonous hydrogen sulfide gas.
Pot scrubbers, and other hard surface media, only form aerobic bacteria. That the same that forms on the tank walls, plastic plants, etc. So IMO, pot scrubbers are a waste of space in a canister.
Pot scrubbers, and other hard surface media, only form aerobic bacteria. That the same that forms on the tank walls, plastic plants, etc. So IMO, pot scrubbers are a waste of space in a canister.
