Bought after watching all of their videos about the filter and was not disappointed.
It took about a week to get going but now it’s going strong just be sure when you place it not to have plans on moving it because it wont
Ziss Bubble Bio Moving Bed Filter
This filter works very efficiently. It took 3 full days for the beads to start rotating properly but my tank was only 20 days old. It now works perfectly. I am not experiencing any unusual noise or other noise anomalies. I can hear the bubbles but that is normal for this device. Thus far I am extremely satisfied with this product. The filter is installed in a 39 gallon tall tank. My guess is that the maintenance will be a breeze. Thanks Cory and team Aquarium Co-Op.