I just recently got a 90 gallon set up that has an internal overflow and sump wet/dry. The setup is pretty nice but I was thinking of doing a planted tank and wet/dry filters really destroy the CO2 levels. So I am looking into other solutions. I am desiding between 2 XP3s, and fx5 or an Eheim 2028. All of these are about the same price in total so the cost is not the issue. I have used xp3's and they work great, how ever I was looking to maybe try something new. Obviously the FX5 has the Eheim for GPH, I am looking for one that has the least maintenance and easiest to maintain. If any one has used either one of these two let me know your thought, or if I should just stick to the xp3's.