Filtration Question

[Bob I]

Originally Posted by Bartman

My understanding is that once enough goop (I believe that's the correct technical term) had accumulated in the foam and been broken down that you would have a similar situation to your sand bed in terms of nitrate removal. I am no scientist so unfortnately I cannot give you a better explanation. I just didn't want to end up with a bunch of foam full of crap if it wasn't appropriate. BTW, how deep is your sand bed?

Thanks for the reply,
Scott.

That would be incorrect as far as I know. Nitrate is converted to Nitrogen by by anaerobic bacteria that live in the lower area of the sandbed where there is no oxygen. The foam in the filter has plenty of oxygen available, so indeed it would merely create Nitrates.

The sandbed in my nano is three inches. It should be four inches, but in a standard 10 gallon tank would only leave eight inches of water.