Hi, Not too sure on how your planning on having your set up, i'll try and clear up static and fluidised K1 for you.
Static K1 if for mechanical filtration, it traps fine particles after a vortex or prefilter to stop large particles. So you could have a large vortex with your outlet at the top, cover the outlet with some sort of perforated covering to retain the K1. And then put K1 in the top of the vortex, deeper than the perforated section of the outlet to trap all fines before going on to biological stage. When you want to clean it you drop the water level to below the outlet, then aeriate with air stones placed in the bottom of the vortex, then flush the vortex and repeat a few times until the K1 is clean. This does need doing fairly regulary as it can go anaerboic if left.
Fluidised K1 is K1 which is kept in constant motion by aeriation, by doing this there is no settlement on the media (not like in flocor of Jap matting)so it is cleaner and allows for stronger bacteria growth, as their is more oxygen available aswell. It can be aeriated with thick airline in a ring with small holes drilled (bout 0.5mm i think) but works just aswell with lots of air stones used with 4mm airline.
You wont go wrong if you use K1, ive got a very overstocked pond and the fish were eating 100+grams of food a day in summer and i had perfect readings all year.
Hope this helps
Posted on Oct 27, 2006, 5:34 PM from IP address 82.38.197.142