Whys
New member
I'm trying to decide how I want to bio-filter my QT and am looking for any input.
Should I use something like a bio-wheel...
http://www.marinedepot.com/ps_ViewI...ters_HOB_Power_Filters_Under_30_Gallons&tab=0
Or should I use an external canister with a corse filter sponge?
Should I use something like a bio-wheel...
http://www.marinedepot.com/ps_ViewI...ters_HOB_Power_Filters_Under_30_Gallons&tab=0
Or should I use an external canister with a corse filter sponge?