DIESELMACK said:the filtration is a multi stage consisting of a 75gallon sump......1st goes through pre filter at overflow and to a 20gallon settlement tank that has a 8"thick sponge on the out to the bio tower(20 gal of bio balls) then drops to the 75gal sump(sectioned off with 4 gateways...1st=carbon/floss, 2nd=peat,3rd contains the heaters and an aerator chamber,4th contains the big mag1800) from the sump pump it goes into 2 36watt UV sterilizers and "Ys" to return at 2 seperate points in the tank...one spraybar above the surface for aeration return and one submersed 1" pipe for under current. but works 100% efficent.
Nice.. And yea , it works very well... water is very clear specially for a tank packed with pigs like cichla.