Originally Posted by Cody
I beleive he is the same maker of the thread that asked about this.
It means that he had eggcrate under the sand to support the tank. I have it myself, and I know a lot of people that do.
Yes Cody, the use of a plenum system is well known. I am one of the biggest supporters of denitrification systems that you will ever meet. However, plenum systems generally do not use live sand because the particle size is not correct for such setups. Effective plenums normally use an aragonite substrate of larger particle size. Live sand systems are usually placed directly on the bottom of the aquarium, without the use of egg crate or screening.
These facts are widely accepted in hobby and supported by almost all recent literature you will find on the use of plenums and live sand substrates. I just read a magazine article detailing this exact conversation. I will try to dig it up to state my reference, but it was written in August 2008, so the information is extremely current.
This is where my questions come into play. The exact details of the plenum design will be critical to the success of this system.
Onefish- How did you design the plenum?
Cody - Did your system use live sand, or dry aragonite? How did you design your system.
I can't emphasis enough the importance of this conversation. If you do this wrong, your system will become a nutrient rich nightmare.