Well my Marinelands are also almost brand new, they seem to work well thus far, they seem as well built as the FX5 anyway. I hate the input/output parts but the rest seems ok. Three year warranty so I figure if it makes it past three years it will have paid for itself. If I was to add say a 2262 or a 2080 would that not be way overkill for a 125 with two 530's also? I guess I could always box a Marineland as a spare but would that make sense to you folks just to say I got the Eheim? I've cut back one tank at this point so I have both running on the 125? I've posted this here when I look I maybe should have started another post?