I just got done setting up our new Fluval FX5 and everything seems to be working just fine. I returned the prefilter a few days ago and got some more BioMax(4 boxes total). I then took the advice of VeipaCray and ordered some Seachem Purigen and a fine mesh bag to hold it. I also ordered a large package of the blue foam filter pads for the FX5. Then, all I had to do was wait for the Postal Service to deliver everything.
Today was the day! Everything I needed was here so I got right down to business right after work. After all of the media and foam pads were thoroughly rinsed, I cut the hoses to length, tightened the connections, put in the required 2 gallons of water, closed the lid and we fired that bad boy up! I won't bore anyone with too many details but I must say that the whole process was a piece of cake. The filter seems pretty quiet to me, so far I'm happy.
Our little slider, Robinson, who my daughter named after the Yankee's second baseman, seems to be enjoying his new home and new filter. Believe it or not, he is at this very moment using the filters inlet strainer to scratch his itchy shell. He's shedding and it must feel good to rub up against the hard plastic. It's really pretty damn funny to watch, I wish you all could see this.
Thanks to Steve and VeipaCray for the help. There's a happier RES and a happy Yankee fan in NY.