i was thinking about running a 75 gallon DT on my ground floor with a 55 gal tank acting as a sump in my basement. i wanted to use a current 6011 DC return pump to lift 9 feet but customer service at current usa said using it for that much head height would not be a good idea and i should stick to AC pumps. my next great idea was to put both tanks in the basement. when i was planning on using a 29 gal tank for the sump i bought a 26 gal bowfront and built a stand so that the height to the rim of the bowfront would be the same as having the 29 under the marineland 75 gal combo that i bought. i bought a bubble magus curve 5, and a sicce syncra 3.0 to complement the system but it seemed cramped under the 75. the diy siphon drain works and the syncra was easy to use but i want a larger refugium area. i have a 55 gal that would give me 24 inches of fuge, 10 inches of skimmer and 14 inches of return. i am really into using a DC return pump;any experience or suggestions?