I've got a 20 gallon, long aquarium that is currently running an internal filter (Fluval U2) that isn't quite cutting it. I'd like to supplement it with a HoB
, but I only have approx. 3" of clearance between the back of the tank and the wall. I wont get into why, but I am not able to make the gap any bigger.
The Aqueon Quietflow is looking like my best bet since the impeller is on the part that goes on the inside of the aquarium. However, Im not really sold on their "Bio-Holster" for cultivating BB though, and there's not a whole lot of room for me to add additional biological filtration.
Anybody know if the Fluval C2 will fit or maybe have another suggestion?