emperor 400 for 75 gal tank?

[blackbarracuda]

Will an Emperor 400 with 2 filters on each side (either 2 filters on each side or a filter and a container of carbon on each side.... which is better?) be enough for a 75 gallon tank with live rock too?... about 50 lbs right now gonna add another 50 in a couple of weeks. thanks in advance

 

[fedukeford]

Do you mean 2 emperors, or 1 emperor and 2 smaller filters? If you have to have a HOB filter id just go with 1 emperor and a skimmer. A caister filter (like a fluval 405) would be better though.