liljosh609
Aquarium Advice Activist
- Joined
- May 14, 2011
- Messages
- 190
I have an aquaclear 50 and an aquatech powerhead on my 55 gal with sand subtrate. I did a large water change and turned them off for a brief moment, then added the water, turned them on and they got loud. They usually do this for 4 hours to even a couple of days, but they have been doing it for 3 days with no change. What could have happened?