In another post, I just said I was going to try something to cut down on my filter's water flow...but I went to try it and remembered it had slowed down a lot it the past couple days. It was down to just a trickle today to my surprise--usually it is nearly knocking the fish over when they swim by. So, thinking it was clogged up, I rinsed the media and intake tube. But when I plugged it back in, it was even weaker. What's wrong with it? I've had that filter for several years, could it be that the motor is dying? Should I replace it before it stops completely? Or is there just some part that needs replacing or something? Help!!! ??? ???