Agreed.Raptorthefishman;3927536; said:To be honest I've always used biowheels and I don't see that changing they are great filters.
sushiray;3975185; said:I have 2 ac 110's & 1 ac 70 all run super quiet - unless the water level goes down then you hear the splashing water flow & as well as the intake tube taking in some air so that will cause a ruckus.
I top it off & it's quiet again. I love my AC's!!