[president89]

I used to use this filter on a freshwater tank. It sat for maybe 3 years, and I setup a fish only tank and was planning on using this filter. I cleaned it out, and now i notice that its pretty loud while on. The stream of water looks to be flowing correctly. Are these normally loud(i can't remember). Does the propeller get loud after alot of use? I might buy a different model, because this tank is in my room and i can with an air conditioner going, but this is unbearable.