[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Keeping Quarantine Tank Filter Media in a Planted Tank

>> Date: Mon, 14 Aug 2000 11:37:17 -0700
> From: Wright Huntley <huntley1 at home_com>
> Subject: Re: 
> I recall reading that 70% of the biofilter action of a cycled tank is due to
> the glass and substrate, and 30% or less due to the filter. [Since my memory
> is still my second-shortest thing, I regret I can't cite the source right
> now.] 

I've mentioned that a few times. I bought some self-published books from a Dr. 
Gianosco (sp?) in Monterrey, CA. He had some extensive experiments that showed 
most nitrifying bacteria where on the gravel and glass surfaces of a tank. 

> Based on all that, I'm tempted to suggest that the trickle filter, perhaps,
> does not support the same submersed bacteria we have on the glass and in the
> substrate, and when confined to a closed cannister filter it either just
> does not work or quickly dies.

I was wondering about that when I pulled out some bioballs to replace the 
biomedia. Hmmm, mostly in air vs. under water. Hmmm. 

I think from now on I'll keep the little 2213 running in one of the tanks as 
extra circulation. That should keep it active but now I've got to clean the durn 

George Booth in Ft. Collins, Colorado (booth at frii_com)