Ok, I got an amazing deal on a 125 with a stand, and I want to set it up in about a month or so. I want to do a stingray, arowana tank. Obviously sand is a must, so no UGF. I am thinking about grabbing a FX5. Do you think I need more filtration than that? Also any ideas on where I can get some bogwood that would look good in it? I am getting two Hydor Koralia powerheads also. Also any other ideas on tankmates would be great. I would really like to throw in a TSN X RTC and move them all to a 400 gallon in a few years. Possibly some Blood Parrots and/or Flowerhorns also maybe. Any advice would be great. I have never had anything bigger than a 55 gallon, but I have kept fish for 15 years now. Thanks for any help!