I've got a bit of detritus accumulating in my 100g DT that I've tried several times to suck up during water changes but I can't seem to get the poop and stuff all the way up the Python tube and down the line. It only goes about halfway up the tube, tumbles around a while, and eventually sinks back down to the sand bed. I thought maybe I didn't have enough flow/suction, so I connected my Python line to a spare RODI filter housing with a Sicce pump on the output of the canister so I could filter the junk and pump the clean water back into the sump. Same result - detritus won't make its way up through the tube and down the line. Do my fish just have unusually heavy poop? Is my python line too long maybe? What am I doing wrong?
