Hello! A few months back I was given a new filter for my 27 gal tank. The person who got it for me purposely got a filter for a 40-50 gal tank. I was happy with it for a while because I desperately needed a new filter, but after a while Iíve come to the conclusion that itís just too much. Is there any way I can get the filter to not pump as much? Itís a Marineland brand. Thank you!