Hi All! This is my first post! I've found some great info on this site...hoping someone can help with my filter issue. I have the Aqueon Mini Bow 2.5 Tank. It's the one with the divider, but I don't use it and only have one fish in the tank. I noticed my water was very cloudy and there was what I believe to be green algae all over the filter cartridge. I emptied the tank and put in clean water.....when I put the filter with a new cartridge back in, it's making a loud noise and it isn't filtering the water! Any suggestions?? Thanks!!