bingo- I think I may be on to something here.
ok this system depends on 3 different types of media.
Carbon, phosphate remover and DENITRATE.
Hmm de nitrate????? with further investigation DENITRATE sounds to be doing the same thing as ZEOVIT yes i said it ZEOVIT
first by using the canister filter he is fluidizing the media.(sounds kinda like a zeo filter?)
sea chem states this : DIRECTIONS: For best results, de*nitrateâ„¢ should be placed to assure the flow of water through it, such as in a canister filter, chemical filtration module, or box filter. Flow rate should not exceed 200 L (50 gallons*) per hour. If higher flow rates are unavoidable, use Matrixâ„¢ or Pond Matrixâ„¢. It is best to rinse off dust before use. Once de*nitrateâ„¢ has been in use for several days, nitrate concentrations should start to fall and level off gradually at a concentration of about 4ââ"šÂ¬Ã¢â‚¬Å“5 mg/L as nitrate. As long as nitrate concentrations remain under control, the product is not exhausted. Each 500 mL of de*nitrateâ„¢ treats about 100ââ"šÂ¬Ã¢â‚¬Å“200 L (25ââ"šÂ¬Ã¢â‚¬Å“50 gallons*), depending on initial nitrate concentration and the current biological load. Enough should be used to remove nitrate at a rate at least as fast as the rate of formation. If very high nitrates are initially present, they should be brought down to less than 20 mg/L with water changes.
sounds kinda like the same principle of a zeolith?
please correct me if im wrong?
cb