04-11-2011, 06:26 PM
Join Date: Feb 2011
| | Re: Filter Media-less Aquarium
I'm actually planning such a tank. In a week's time, I should be able show pictures... the aquarium is still being built...
The tank will be 120cm by 80cm. Along the back wall (at a 25cm gap), a 25cm high partition will be siliconed in. This section will be filled with garden soil (already curing) and planted with Cyperus alternifolius. As I plan to fill the tank to the 40cm level, the swamp section will be submersed by 15cm.
I already used this system when I had a pond. Cyperus are most effective at drawing nutrients from the water. Also, their stems serve as "medium" for nitrifying bacteria. That's why papyrus is being used in waste water management.
The tank will only have a powerhead for creating a brisk current, but no additional filtration. In my pond, I kept tilapia; I plan on West African cichlids for my tank.
Here is a good article on a natural system, which could serve as inspiration for your project: http://www.tuncalik.com/2009/09/biotope-in-my-study/
Greetings from Nairobi