OK, glad you guys corrected the misunderstanding I had. I installed the Fluval cannister last night. My other filter had two floss/carbon packs with a plastic brace in each. I put those in the bottom, left out the 2 bottom trays for now (filters are to big to fit in the trays and I did not want to cut them up), and put the top tray in with the ceramic biomax rings. I will leave the cannister like this for three weeks, then pull out the old filters and put the other two trays in the cannister.
Also, I have my CO2 tank, regulator, PH monitor, and other hardware ordered. I decided to go with the DIY reactor and will build that this weekend.
All the help and information I have received from everyone is amazing, I am really excited about how my tank looks now and it is just starting!