I am currently cycling my 135 gallon, and have it setup with 1 emp 400. I have another emp 400 on my 55, which I will move to the 135 once cycling is complete. The new tank will contain 2 large Oscars and 1 large pleco. Will 2 emp 400's be enough for the 135? The tank dim's are 72 x 18 x 25. The packaging says one emp 400 can handle up to 80 gallons, but everyone I've talked to seems to think 2 of these may not be enough filtration. I've also read about converting emp 400's to "reverse action power filters". Has anyone done this, and does it make a difference? Finally, should my intake strainer be towards the bottom of the tank, or in the middle?
thanks for your help,