Does it work better than the Fx6? If I do buy another eheim, I want it to have filter trays, which it doesn't look like this one has. The cost of this is very close to a sump, so I not sure if I should buy this over a sump. I do like the fact this is rated for 900gph/500g, and that I can use carbon in it (unlike the sump, where I have to pay another $100+ for a media reactor).I would go with either a sump or an eheim 2262.