fuval evo

Hi all, I just set up a fluval Evo 13.5 and was looking into ATO's for it. There are so many choices that it's overwhelming. I somewhat narrowed it down to 3 but I was hoping for some expert opinions. The three ATOs I've seen a lot about were the Tunze 3155, autoaqua micro, and the XP Aqua...

Hi! This is my first post here. I had my new sicce 1.0 delivered today, and have put it straight in the chamber of my fluval Evo. It's very loud (can hear it over the TV). I've held it in the middle of the tank and its not loud at all! But cannot seem to get it to be quiet in the chamber it...