Hi Everyone,
I now have purchased two (2) Marineland Bio-Wheel Emperor 400 Filters with zero success. I have followed all the instructions and watched multiple videos. I thought this was supposed to be a very simple filter to setup.
The first one made a terrible loud sound when plugged in. I thought the water level was not high enough, yet I filled it up to the brim and it made the same noise.
The second one makes a quieter noise, but the bio wheels do not spin, therefor I do not think it works.
Can someone please give me advice I am desperate at this point. Thank you!

I now have purchased two (2) Marineland Bio-Wheel Emperor 400 Filters with zero success. I have followed all the instructions and watched multiple videos. I thought this was supposed to be a very simple filter to setup.
The first one made a terrible loud sound when plugged in. I thought the water level was not high enough, yet I filled it up to the brim and it made the same noise.
The second one makes a quieter noise, but the bio wheels do not spin, therefor I do not think it works.
Can someone please give me advice I am desperate at this point. Thank you!
