Hey there. Having trouble with my Fluval fx6. I started noticing fish were dying. I come to find my fluval filter wasn't intaking and outputing at full power anymore. I ordered all new motor with the new impeller and seal. This didn't change a thing..tubes aren't clogged, seals seam fine for them..WHAT IS GOING ON. I literally am goin crazy here tryn to figure it out. I took everything a part again for the 3rd time and then took it up to test in my bathtub with both motors with different impellers n seal. I ended up switching the motor back n forth to see differences like 5 times..took me hours and thought I had everything good lookn with the og motor with new impeller. I put it back on my aquarium at 2:30am and next day I'm at the same place I was with a new impeller and seal. The motor did nothn, my og one was perfectly working. It seemed to have been intaking and outputing actually fine in my bathtub..but once I put it on my aquarium...its so weak that fish die..anyone out there have a clue???? Aquarium is a 65 gallon..I have a video of it outputting earlier today I can email to the people who want to help..also to note, my intake doesn't feel like the tube is really intaking too hard..thats where the flow seems weak. Alllllso, the air bubbles are huge it makes when it expels air what not. Which it didn't do before when it worked properly