I have one and have had no problems, your tank is larger than what is recommended I believe, however it depends on your expected bioload, or running 2 units. I would consider a sump instead.
I have one on my 37, but for your 72 two if no skimmer, one with a good skimmer. I don't know about prizm, I run the remora, but for your tank I think the remora pro would be better. and upgrade the pump.
Ditto. 2 if no skimmer 1 with a skimmer. But Iam running 2 with a skimmer. I get a lot of water movement to. It filters the tank like 8 times an hour. 2 with your 75 would circulate it well and also will make your tank pretty darn clear!
A bakpak 2 skimmer would work well. Its one of the better cheeper ones. You can get them for about 150. www.**************.com has the emperor 400's for like 39.
Originally posted by pyro383
One thing to add, when you put 2 emperors, I would stagger the intakes, keep 1 short at one end of tank and the other long at the other end
I second that. Thats what I did.
I have a 400 on my 75 I love it! For a skimmer I have an Excalibur it is awsome it pulls out a ton of junk. And I can bearly hear it! I have only seen them one place and that is where I bought it from and thats saltycritter.com he is in ohio. It came with an overflow so it keeps the oily film off the top of your water and it cost me $130. I had a prizm but took it back because it was very loud and didnt do the job!