. Lol on serious note I plan on upgrading the tank wanted to make sure I had enough to filteration to handle something larger. Big tanks are expensive and big filtration is expensive so I chose to spend now on filtration and upgrade tank later. I also run a 110 gallon sump 2x jebao 12or15lph pumps don’t remember with a bunch of different media’s, a 21” sand filter stuffed with ultima 2 media (poor mans ultima) 1/3hp wlim pump 3kgph and a Rubbermaid trash can with k1 900gph mag drive pump on my 600 gallon overkill but it works flawlessly.Would like to hear your own experience with a combination of the two or preference over the other and what size you are filtering. Curious to see DIY ideas on how others are filtering with 800 to 3k gallons. Thanks.



I run exactly what you asked about, an ultima 2000 and sump in line for my 450 ray tank it works great - I actually use a 90 sump and a submerged dc 20000 liter pump with the correct flow curve. It works great.
Only issue is I was setting up a second similar system and the ultima company, aqua ultraviolet, is giving me issues about making good on their warranty with a brand new ultima 2000.