Hi All! I am fairly new to this community and so glad to have this fabulous resource now. I have a 29 gal sw tank that has been setup for about 6 months. I have a Porcupine Puffer that is now about 10 inches+ a maroon clown that is 4-5 inches and a dwarf fuzzy lion that is 3-4 inches. Puffy, my ever expanding puffer has almost doubled since I got him as my original post-cycle stock so I am now upgrading to a 75 gal. On the recommendation of LFS I purchased a BakPak filter which is all I have been using for filtration. I was planning to move the BakPak over to the new tank along with the aggressive fish. I plan to add an additional filter and have been eyeing the Magnum 350 and wanted to ask for recommendations? I have read some previous reviews that indicate it is a little difficult to put together which I am willing to endure if it will keep my water sparkling clear. I am also hoping for a reasonable pricetag as the BakPak was a ridiculous $250. Any suggestions appreciated.