So I am going to order a new filter tonight....or if I get persueded maybe in a few days ..I have had many fluval FX6/FX5 No problems with them AT ALL. However I have been debating on trying an Eheim of the same caliber. I NEVER owned an eheim before...I have owned an aquatop and a jebo. I have heard great things from eheim but also more bad things....what even is the Eheim equivalent of the FX6? I have no idea...they have so many numbers it confuses me. I am guessing it's the pro 3 1200?? Seems pretty outdated though....not sure....let me know all about eheim if you can I want to hear it from the hobbyist perspective not the company who is obviously trying to sell a product....if it helps in any way the filter will be for a 240 gallon dovii tank heavily fed and heavy water changes.