I had a sump on my 240...built it myself...probably part of the problem but it was a PITA mess. My stand was built wrong and I cant fit a tank style wetdry. I had a 75 I was going to use but it wouldnt fit and a 55 would be too small. So i built one and it sucked...and had socks...4 4" probably too small but still. All my other tanks at work (20 or so) have a HOB or canister and are a breeze to maintain compared to the sump I had. So I want canisters this time...if the stand was different I would reconsider but its not. If the tank was much bigger I would really want the sump too but I think this size might still be manageable with the canister...I hope lol.